saccade /1/Consciousness/Sense/Vision/Physiology/Eye Movements/Saccade/saccade
saccule /1/Consciousness/Sense/Vestibular System/Anatomy/saccule
sacred /6/Religion/Things/sacred
sacrifice, ritual /6/Religion/Sociology/sacrifice as ritual
sacroiliac /4/Zoology/Organ/Skeleton/Bones/Trunk/sacroiliac
sacrum /4/Zoology/Organ/Skeleton/Bones/Trunk/Vertebrae/sacrum
saddle point /3/Calculus/Differential Equation/Singularity/saddle point
sadism /6/Psychology/Behavior/Kinds/Pain Infliction/sadism
safe-deposit box /7/Financial Affairs/Banking/safe-deposit box
safety glass /7/Machine/Industrial Materials/Glass/safety glass
safety glasses /7/Machine/Kinds/Mechanical/Household/safety glasses
sagittal /4/Zoology/Organ/Skeleton/Bones/Head/sagittal
sailing /7/Game/Athletic/Water/sailing
salamander, myth /6/Religion/Religions/Mythology/Greco-Roman/Monster/salamander monster
sales tax /6/Economics/Macroeconomics/Government Actions/Tax/sales tax
saliency, perception /6/Psychology/Cognition/Perception/Properties/saliency perception
salinity /5/Earth Science/Water/Ocean/salinity
saliva /4/Zoology/Organ/Digestion/Mucous/saliva
salivary gland /4/Zoology/Organ/Digestion/Parts/Mouth/Saliva/salivary gland
salmonella /4/Medicine/Disease/Kinds/Organism/Bacteria/salmonella
salsa, dance /2/Dance/Kinds/Latin/salsa dance
salt /5/Chemistry/Inorganic/Acid-Base/salt
saltatory conduction, myelinated fiber /4/Zoology/Organ/Nerve/Neuron/Physiology/saltatory conduction
samara /4/Botany/Plant/Vascular/Angiosperm/Fruit/samara
samba /2/Dance/Kinds/Latin/samba
sampling /3/Statistics/Statistical Population/sampling from population
samurai /6/History/History/Nation/Asia/samurai
sanction /6/Sociology/Sociological Group/Psychology/sanction
sandbar /5/Earth Science/Land/Land Forms/Shore/sandbar
sandstone /5/Earth Science/Mineral/Kinds/Rock/Sedimentary/sandstone
Santa Ana /5/Earth Science/Atmosphere/Wind/Kinds/Santa Ana
sap /4/Botany/Plant/Vascular/Circulation/Fluid/sap
saphenous vein /4/Zoology/Organ/Circulation/Parts/Vein/saphenous vein
sapling /4/Botany/Plant/Vascular/Parts/Tree/sapling
saponification /5/Chemistry/Biochemistry/Lipid/Chemical Reaction/saponification
sapphire /5/Earth Science/Mineral/Kinds/Aluminum/sapphire
saprophyte /4/Microbiology/Bacteria/Kinds/saprophyte
sapwood /4/Botany/Plant/Vascular/Parts/Stem/Woody/Xylem/sapwood
sarcoma /4/Medicine/Disease/Kinds/Cancer/Kinds/Tissue/sarcoma
sarcophagus /2/Art/Sculpture/sarcophagus
satellite /5/Astronomy/Solar System/satellite moon
satire /2/Literature/satire
satisfiability /3/Computer Science/Software/Algorithm/Polynomial/satisfiability problem
satisficer /6/Economics/Microeconomics/Goods/satisficer
saturated hydrocarbon /5/Chemistry/Biochemistry/Lipid/Kinds/Saturation/saturated hydrocarbon
saturated solution /5/Chemistry/Inorganic/Phase/Solution/Concentration/Level/saturated solution
saturation, color /1/Consciousness/Sense/Vision/Color Vision/Parameters/saturation of color
saturation, magnetism /5/Physics/Electromagnetism/Magnetism/Permeability/saturation of magnetism
saturnalia /7/Holiday/saturnalia festival
satyr /6/Religion/Religions/Mythology/Greco-Roman/Monster/satyr
savanna /4/Ecology/Ecosystem/Bione/Land/savanna
savings account /7/Financial Affairs/Banking/savings account
savings and loan /6/Economics/Microeconomics/Business/Sectors/Finance/savings and loan
savings bond /7/Financial Affairs/Investing/Bond/savings bond
scab, strikebreaker /6/Economics/Microeconomics/Production/Factors/Labor/Strike/scab as strikebreaker
scalar /3/Calculus/Vector/Kinds/scalar as magnitude
scalar product /3/Calculus/Vector/Operations/Product/scalar product
scale model /3/Computer Science/System Analysis/Model/scale model
scales with sword /6/Linguistics/Writing/Symbol/Pictogram/scales and sword
scanner, computer /7/Machine/Kinds/Optical/Copying/scanner
scansion /2/Literature/Poetry/Rhythm/scansion
scapegoat /6/Psychology/Attitude/scapegoat
scapula /4/Zoology/Organ/Skeleton/Bones/Trunk/scapula
scar /4/Botany/Plant/Vascular/Parts/Leaf/Abscission/scar of plant
scar tissue /4/Zoology/Organ/Immune System/scar tissue
scarcity /6/Economics/Microeconomics/Production/Factors/scarcity
scatology /4/Biology/Subjects/Evolution/scatology
scattergram /3/Statistics/Graph/scattergram
scattering, collision /5/Physics/Matter/Atom/Reactions/scattering after collision
scattering, light /5/Physics/Wave/Diffraction/Scattering/scattering of light
schema, perception /6/Psychology/Cognition/Perception/Representation/schema perception
schiacciato, sculpture /2/Art/Sculpture/schiacciato
Schick test /4/Medicine/Medical Examination/Tests/Schick test
schism /6/Religion/Sociology/schism
schist /5/Earth Science/Mineral/Kinds/Rock/Metamorphic/schist
schistosome /4/Zoology/Kinds/Flatworm/schistosome
schizophrenia /4/Medicine/Disease/Kinds/Organ/Nerve/Mental/Schizophrenia/schizophrenia
Scholastic method /3/Logic/Applications/Scholastic method
school, fish /4/Zoology/Kinds/Fish/school of fish
Schottky barrier /7/Machine/Kinds/Electronic/Effects/Schottky barrier
Schrödinger equation /5/Physics/Quantum Mechanics/Theory/Equations/Schrodinger equation
sciatic nerve /4/Zoology/Organ/Nerve/Kinds/sciatic nerve
scientific notation /3/Number Theory/Notation/Scientific Notation/scientific notation
sclera /1/Consciousness/Sense/Vision/Anatomy/Eye/Layers/sclera
sclerosis /4/Medicine/Disease/Kinds/Organism/Bacteria/sclerosis
scoliosis /4/Medicine/Disease/Kinds/Organ/Skeleton/Back/scoliosis
scotoma /1/Consciousness/Sense/Vision/Problems/Lesion/scotoma
Scrabble /7/Game/Board/Scrabble
scratch test /4/Medicine/Medical Examination/Tests/scratch test
screw /7/Machine/Kinds/Mechanical/Inclined Plane/screw as plane
scrimshaw /2/Art/Sculpture/scrimshaw
scrotum /4/Zoology/Organ/Reproduction/Male/Parts/scrotum
scuba /7/Machine/Kinds/Fluid/Air/scuba
scurvy /4/Medicine/Disease/Kinds/Nutrition/Vitamin/scurvy
sea floor spreading /5/Earth Science/Planet/Plate Tectonics/Rift/sea floor spreading
sealant /7/Machine/Tool/Fastening/Fastener/Glue/sealant
search engine /3/Computer Science/Internet/Programs/search engine
search warrant /6/Law/Trial/Documents/search warrant
seborrhea /4/Medicine/Disease/Kinds/Organism/Bacteria/Skin/seborrhea
secant, circle /3/Geometry/Plane/Circle/secant circle
secant, curve /3/Geometry/Plane/Curve/secant curve
second messenger /4/Zoology/Organ/Nerve/Neuron/Parts/second messenger
second the motion /6/Political Science/Government/Branch/Legislative/Procedure/Parliamentary/second the motion
second-degree murder /6/Law/Crime/Crimes/Violent/Murder/second-degree murder
sect /6/Religion/Sociology/Church/sect
section symbol /6/Linguistics/Writing/Symbol/section symbol
sector tool /7/Machine/Kinds/Mechanical/Rotation/sector tool
sector, circle /3/Geometry/Plane/Circle/sector circle
security, money /6/Economics/Microeconomics/Finance/Securities/security for finance
sedge /4/Botany/Plant/Kinds/Grass/sedge
sedimentary rock /5/Earth Science/Mineral/Kinds/Rock/Sedimentary/sedimentary rock
sedition /6/Law/Crime/Crimes/Misprision/sedition
seed, plant /4/Botany/Plant/Vascular/Angiosperm/Seed/seed
seeding /5/Earth Science/Atmosphere/Cloud/seeding clouds
seedling /4/Botany/Plant/Vascular/Parts/Tree/seedling
segmentation problem /1/Consciousness/Sense/Vision/Pattern Recognition/Methods/segmentation problem
segmentation, body /4/Zoology/Classification/segmentation of body
segmentation, worm /4/Zoology/Kinds/Annelid/Segmentation/segmentation of annelid
segregation, chromosome /4/Cell/Cell Cycle/Meiosis/segregation of chromosomes
segregation, society /6/Sociology/Minority/segregation of minority
seif /5/Earth Science/Land/Land Forms/Sand/seif
seismograph /5/Earth Science/Planet/Plate Tectonics/Earthquake/seismograph
seismometer /7/Machine/Kinds/Instrument/seismometer
seizure, law /6/Law/National/International Law/State Relations/seizure in law
selection pressure /4/Genetics/Allele/Population Genetics/selection pressure
selective breeding /4/Biology/Evolution/Reproduction/Mating/selective breeding
selectivity, measurement /5/Physics/Measurement/Methods/selectivity of measurement
self-consciousness, recursion /1/Consciousness/Self-Consciousness/self-consciousness
self-defense, person /6/Law/Tort/Defenses/self-defense in tort
self-determination /6/Political Science/Voting/self-determination
selfed /4/Genetics/Plant/Regeneration/selfed
self-energy /5/Physics/Relativity/General Relativity/Energy/self-energy
self-organization /3/Computer Science/Systems/Self-Organization/self-organization
self-preservation /6/Philosophy/Ethics/Feelings/self-preservation
self-symmetry, fractal /3/Geometry/Fractal Geometry/self-symmetry
semantics /6/Linguistics/Semantics/semantics
semen /4/Zoology/Organ/Reproduction/Male/semen
semicircle /3/Geometry/Plane/Circle/semicircle
semicircular canal /1/Consciousness/Sense/Vestibular System/Anatomy/semicircular canal
semicolon /6/Linguistics/Writing/Symbol/Punctuation/semicolon
semiconductor /5/Physics/Electromagnetism/Conductivity/Semiconductor/semiconductor
semilunar valve /4/Zoology/Organ/Circulation/Parts/Heart/Flow/semilunar valve
semitropics /5/Earth Science/Planet/Earth Coordinates/Latitude/semitropics
senatorial courtesy /6/Political Science/Government/Branch/Legislative/Procedure/senatorial courtesy
senility /4/Medicine/Disease/Kinds/Organ/Nerve/Aging/senility
seniority /6/Economics/Microeconomics/Production/Factors/Labor/Job/seniority
sensation /1/Consciousness/Sense/sensation
sensitivity, measurement /5/Physics/Measurement/Methods/sensitivity of measurement
sensory system /4/Zoology/Organ System/sensory system
sentence, grammar /6/Linguistics/Grammar/Syntax/Sentence/sentence in grammar
sentience /1/Consciousness/Sense/Experience/sentience
sepal /4/Botany/Plant/Vascular/Angiosperm/Flower/Parts/sepal
separation, legal /7/Legal Affairs/Marriage/Divorce/Separation/separation in law
sepsis, cell /4/Cell/Protein/sepsis
serial chaining /6/Psychology/Behavior/Kinds/serial chaining
series circuit /5/Physics/Electromagnetism/Circuit/Loads/series circuit
serigraph /7/Machine/Kinds/Printing/Kinds/Silkscreen/serigraph
serology /4/Biology/Subjects/Medicine/serology
serotonin /4/Zoology/Organ/Nerve/Neural Chemical/Transmitter/serotonin
serpentine, mineral /5/Earth Science/Mineral/Kinds/Silicates/Phyllosilicate/serpentine mineral
serum /4/Zoology/Organ/Blood/Parts/Plasma/serum
servomechanism /7/Machine/Kinds/Mechanical/servomechanism
severance pay /6/Economics/Microeconomics/Production/Factors/Labor/Job/Benefit/severance pay
sewing machine /7/Machine/Kinds/Electromechanical/sewing machine
sex chromosome /4/Genetics/Chromosome/Kinds/Sex/sex chromosome
sex-linked recessive disorder /4/Medicine/Disease/Kinds/Genetic Disease/sex-linked recessive
sexology /4/Zoology/Organ/Reproduction/sexology
sexual dimorphism /4/Biology/Evolution/Variation/sexual dimorphism
sexual reproduction /4/Biology/Evolution/Reproduction/Sexual/sexual reproduction
sexual selection /4/Biology/Evolution/Reproduction/Mating/sexual selection
sfumat /2/Art/Painting/Lighting/sfumat
shading /1/Consciousness/Sense/Vision/Pattern Recognition/Methods/shading for shape
shadow /5/Physics/Wave/Diffraction/Shadow/shadow light
shadow box /7/Machine/Kinds/Optical/shadow box
shale /5/Earth Science/Mineral/Kinds/Rock/Sedimentary/shale
shank, leg /4/Zoology/Organ/Skeleton/Body/Extremity/Leg/shank as leg
share /6/Economics/Microeconomics/Business/Kinds/Corporation/Stock/share
sheaf, paper /7/Machine/Kinds/Printing/Paper/sheaf of paper
sheaf, plane /3/Geometry/Solid/Plane/Intersection/sheaf of planes
shear strength /5/Physics/Dynamics/Pressure/Elasticity/shear strength
shear thickening fluid /7/Machine/Industrial Materials/shear thickening fluid
sheathing, cover /7/Machine/Kinds/Mechanical/sheathing
shell, atom /5/Physics/Matter/Atom/Orbital/shell of electrons
sherif /6/Religion/Religions/Islam/People/sherif
shield, continent /5/Earth Science/Planet/Plate Tectonics/Rift/shield of continent
shielding /5/Chemistry/Inorganic/Chemical Bond/shielding
shin /4/Zoology/Organ/Skeleton/Bones/Extremity/Leg/shin of leg
shin splint /4/Medicine/Disease/Kinds/Organ/Circulation/shin splint
shingles /4/Medicine/Disease/Kinds/Organism/Virus/shingles of skin
shoal /5/Earth Science/Land/Land Forms/Shore/shoal
shock absorber /7/Machine/Kinds/Mechanical/shock absorber
shock after injury /7/Personal Affairs/Health/First Aid/shock after injury
shock wave /5/Physics/Wave/Sound/Kinds/shock wave
shoot /4/Botany/Plant/Vascular/Parts/shoot of plant
shooting /7/Game/Athletic/shooting
shoplifting /6/Law/Tort/Kinds/Property/shoplifting
short circuit /5/Physics/Electromagnetism/Circuit/short circuit
short period /6/Economics/Microeconomics/Market/Period/short period
short wave /5/Physics/Wave/Electromagnetic/Frequency/Radiation Types/Spectrum/short wave
short-term memory /6/Psychology/Cognition/Memory/Kinds/short-term memory
shrub /4/Botany/Plant/Vascular/Parts/Stem/Woody/shrub
shuffleboard /7/Game/Recreational/shuffleboard
shunt, machine /7/Machine/Kinds/Fluid/Tube/shunt tube
shuttle /7/Machine/Kinds/Mechanical/Weaving/shuttle
sickle cell anemia /4/Medicine/Disease/Kinds/Organ/Circulation/Blood/sickle cell anemia
sickness response /4/Zoology/Organ/Immune System/Immunity Types/sickness response
sigma bond /5/Chemistry/Inorganic/Chemical Bond/Kinds/Covalent/sigma bond
sigmoid colon /4/Zoology/Organ/Digestion/Parts/Colon/sigmoid colon
sigmoid curve /3/Geometry/Plane/Curve/Kinds/Logistic/sigmoid curve
significance level, statistics /3/Statistics/Tests/significance level
significant figure /5/Physics/Measurement/Methods/significant figure
silage /4/Botany/Plant/Kinds/Crop/Forage/silage
silica /5/Earth Science/Mineral/Kinds/Silicates/silica
silkscreen /7/Machine/Kinds/Printing/Kinds/Silkscreen/silkscreen
simile /2/Literature/Rhetoric/Figurative Language/simile
simony /6/Political Science/Leadership/simony
simoom /5/Earth Science/Atmosphere/Wind/Kinds/Storm/simoom
simple harmonic motion /5/Physics/Dynamics/Force/Kinds/Restoring/simple harmonic motion
simplex, space /3/Geometry/Solid/Surface/simplex
simulation method /6/Education/Classroom/Methods/simulation method
simultaneity, relativity /5/Physics/Relativity/Space-Time/simultaneity
sin, religion /6/Religion/Psychology/Behavior/sin religion
sinew /4/Zoology/Organ/Muscle/Body/sinew
single bond /5/Chemistry/Inorganic/Chemical Bond/Number Of Bonds/single bond
single quotation mark /6/Linguistics/Writing/Symbol/Punctuation/single quotation mark
singularity, relativity /5/Physics/Relativity/General Relativity/Curvature/Singularity/singularity in space
sink /7/Machine/Kinds/Electronic/Parts/Sink/sink
sinkhole /5/Earth Science/Water/Fresh/Cave/sinkhole
sinking fund /6/Economics/Microeconomics/Finance/sinking fund
sintering /7/Machine/Kinds/Heat/Welding/sintering
sinus /4/Zoology/Organ/Skeleton/Bones/Head/sinus of skull
siphon, bivalve /4/Zoology/Kinds/Mollusc/siphon
siren /6/Religion/Religions/Mythology/Greco-Roman/People/Woman/siren myth
sirocco /5/Earth Science/Atmosphere/Wind/Kinds/sirocco
situation space /3/Computer Science/Software/Algorithm/Kinds/Search/situation space
skeletal muscle /4/Zoology/Tissue/Muscle/Voluntary/skeletal muscle
skeletal system /4/Zoology/Organ System/skeletal system
skeleton /4/Zoology/Organ/Skeleton/skeleton
skepticism /6/Philosophy/Epistemology/Theory/skepticism
skiing /7/Game/Athletic/Winter/skiing
skill, learning /6/Psychology/Cognition/Learning/Kinds/Skill/skill learning
skin /4/Zoology/Organ/Skin/skin
skin diving /7/Game/Athletic/Water/skin diving
skull /4/Zoology/Organ/Skeleton/Bones/Head/skull
skull and crossbones /6/Linguistics/Writing/Symbol/Pictogram/skull and crossbones
skydiving /7/Game/Athletic/skydiving
slander, defamation /6/Law/Tort/Kinds/Communication/Defamation/slander
slash /6/Linguistics/Writing/Symbol/Punctuation/slash
slate, rock /5/Earth Science/Mineral/Kinds/Rock/Metamorphic/slate rock
sleep paralysis /1/Consciousness/States/Sleep/Problems/sleep paralysis
sleep peptide /4/Zoology/Organ/Endocrine Gland/Hormone/Nerve/sleep peptide
sleeping sickness, protozoa /4/Medicine/Disease/Kinds/Organism/Protozoa/Tritryps/sleeping sickness
sleet /5/Earth Science/Atmosphere/Precipitation/sleet
sleeve /7/Machine/Parts/sleeve
slide rule /7/Machine/Kinds/Mechanical/Household/slide rule
sliding scale /6/Economics/Microeconomics/sliding scale
slime /4/Zoology/Kinds/Flatworm/slime mucus
slime mold /4/Botany/Slime Mold/slime mold
slip ring /7/Machine/Kinds/Electromechanical/Generator/slip ring
slipped disk /4/Medicine/Disease/Kinds/Organ/Skeleton/Back/slipped disk
slippery slope argument /6/Philosophy/Ethics/Choices/slippery slope argument
slough /5/Earth Science/Land/Land Forms/Low Area/slough
slush fund /6/Political Science/Actions/Money/slush fund
small intestine /4/Zoology/Organ/Digestion/Parts/Small Intestine/small intestine
smallpox /4/Medicine/Disease/Kinds/Organism/Bacteria/Animal/smallpox
smell, sense /1/Consciousness/Sense/Smell/smell
smelter /7/Machine/Kinds/Heat/Furnace/smelter
smog /4/Ecology/Pollution/Kinds/smog
smooth muscle /4/Zoology/Tissue/Muscle/Involuntary/smooth muscle
sneeze /4/Zoology/Organ/Respiration/Flow/Forced/sneeze
sneezing /6/Psychology/Behavior/Kinds/sneezing
snorkel /7/Machine/Kinds/Fluid/Air/snorkel
snuffer /7/Machine/Kinds/Mechanical/Household/snuffer
soap /5/Chemistry/Organic/Chemical/Carboxylic Acid/soap
soapstone /5/Earth Science/Mineral/Kinds/Silicates/Phyllosilicate/Talc/soapstone
soccer /7/Game/Athletic/Ball/soccer
social contract, government /6/Political Science/Government/Ideas/social contract
social distance /4/Ecology/Community/Society/Behavior/social distance
social insect /4/Ecology/Community/Society/Kinds/social insect
social security /6/Economics/Macroeconomics/Government Actions/social security
social stratification /6/Sociology/Society/Social Class/social stratification
social studies /6/Sociology/Subjects/social studies
socialism /6/Economics/Macroeconomics/Economy/Types/Socialism/socialism economics
socialization /6/Sociology/Society/Socialization/socialization
sociobiology /4/Ecology/Community/Society/sociobiology
sociogram /6/Sociology/Sociological Group/sociogram
sociopath /4/Medicine/Disease/Kinds/Organ/Nerve/Mental/Psychosis/sociopath
Socratic method /6/Philosophy/Epistemology/Thinking/Productions/Socratic method
sod, soil /5/Earth Science/Land/Land Forms/Vegetation/Grass/sod
soda /5/Earth Science/Mineral/Kinds/Carbonates/soda as mineral
sodomy /4/Zoology/Organ/Reproduction/Sex Methods/sodomy
soft palate /4/Zoology/Organ/Digestion/Parts/Mouth/Pharynx/soft palate
soft sell /6/Economics/Microeconomics/Business/Department/Sales/Practices/soft sell
soft water /5/Chemistry/Inorganic/Chemical/Molecule/Water/Type/soft water
softball /7/Game/Athletic/Ball/softball
soft-shoe /2/Dance/Kinds/USA/soft-shoe
soil bank /6/Economics/Microeconomics/Agriculture/soil bank
soil liquefaction /5/Earth Science/Planet/Plate Tectonics/Earthquake/soil liquefaction
sol, mixture /5/Chemistry/Inorganic/Phase/Mixture/sol mixture
solar cell /7/Machine/Kinds/Electronic/Light/solar cell
solar eclipse /5/Astronomy/Solar System/Eclipse/solar eclipse
solar flare /5/Astronomy/Star/Sun/Layers/solar flare
solar plexus /4/Zoology/Organ/Nerve/Plexus/solar plexus
solar system /5/Astronomy/Solar System/solar system
solar wind /5/Astronomy/Star/Sun/Layers/solar wind
sole proprietorship /6/Economics/Microeconomics/Business/Kinds/sole proprietorship
solenoid /5/Physics/Electromagnetism/Magnetism/Machine/solenoid
soleplate /7/Machine/Kinds/Electric/Heat/Iron/soleplate
solicitation /6/Law/Crime/Crimes/solicitation
solicitor /6/Law/National/English Law/Lawyer/solicitor
solid angle /3/Geometry/Solid/Angle/solid angle
solid phase /5/Chemistry/Inorganic/Phase/Phases/Solid/solid phase
solidification /5/Physics/Heat/Phase/Liquid/solidification
soliloquy /2/Literature/Drama/Dialogue/soliloquy
solipsism /6/Philosophy/Metaphysics/Theories/Mind/solipsism in metaphysics
soliton /5/Physics/Wave/Superposition/Soliton/soliton
solubility /5/Chemistry/Inorganic/Phase/Solution/Solubility/solubility
solution, chemistry /5/Chemistry/Inorganic/Phase/Solution/solution in chemistry
solvent extractor /7/Machine/Kinds/Fluid/Petroleum/solvent extractor
solvent, chemistry /5/Chemistry/Inorganic/Phase/Solution/Solvent/solvent of solution
somite /4/Zoology/Development/Stages/Gestation/Embryo 028 Day/somite
somnambulism /1/Consciousness/States/Sleep/somnambulism
sonar, detector /7/Machine/Kinds/Electronic/Sound/sonar machine
sonata /2/Music/Classical/Composition Types/sonata
sonnet /2/Literature/Poetry/Kinds/sonnet
sophism /6/Philosophy/Epistemology/Thinking/Statement/Logic/sophism
soprano /2/Music/Classical/Choral/soprano
soul /6/Religion/Soul/soul
sovereignty /6/Law/National/International Law/sovereignty
space heater /7/Machine/Kinds/Heat/Heater/space heater
space-time, relativity /5/Physics/Relativity/Space-Time/space-time
spallation /5/Physics/Wave/Electromagnetic/Frequency/Radiation Types/spallation
spark coil /7/Machine/Kinds/Electromechanical/Spark/spark coil
spark gap /7/Machine/Kinds/Electromechanical/Spark/spark gap
speaker, electronics /7/Machine/Kinds/Electronic/Sound/speaker
speaking in tongues /6/Religion/Psychology/Behavior/speaking in tongues
specialization /6/Sociology/Sociological Group/specialization
speciation /4/Biology/Evolution/Species/speciation
species, classification /4/Biology/Evolution/Classification/Levels/species of genus
species, ecology /4/Biology/Evolution/Species/species in ecology
specific gravity /5/Physics/Dynamics/Fluid/Density/specific gravity
specific heat /5/Physics/Heat/Energy/Heat Capacity/specific heat
spectral color /1/Consciousness/Sense/Vision/Color Vision/Colors/spectral color
spectrograph /7/Machine/Kinds/Instrument/spectrograph
spectrometer /7/Machine/Kinds/Instrument/spectrometer
spectroscope /7/Machine/Kinds/Instrument/spectroscope
spectroscopy /5/Chemistry/Analytical Chemistry/Spectroscopy/spectroscopy
spectrum, light /5/Physics/Wave/Electromagnetic/Frequency/Radiation Types/Spectrum/spectrum
speculation /6/Economics/Psychology/speculation
speed skating /7/Game/Athletic/Winter/speed skating
speedometer /7/Machine/Kinds/Instrument/speedometer
sperm /4/Zoology/Organ/Reproduction/Male/Sperm/sperm
spherical aberration /5/Physics/Wave/Superposition/Refraction/Lens/spherical aberration
spherical degree /3/Geometry/Solid/Sphere/Spherical Angle/spherical degree
spherometer /7/Machine/Kinds/Instrument/spherometer
sphincter /4/Zoology/Organ/Muscle/Kinds/sphincter
sphygmomanometer /4/Medicine/Medical Examination/Instruments/sphygmomanometer
spicule, skeleton /4/Zoology/Organ/Skeleton/spicule of sponge
spike, axon /4/Zoology/Organ/Nerve/Neuron/Physiology/spike in axon
spin dragging /5/Physics/Matter/Atom/Orbital/Spin/spin dragging
spin foam /5/Physics/Quantum Loop Theory/spin foam
spin ice /5/Physics/Matter/Atom/Orbital/Spin/spin ice
spin network /5/Physics/Quantum Loop Theory/spin network
spin, object /5/Physics/Kinetics/Motion Types/Rotation/spin
spin, particle /5/Physics/Matter/Atom/Orbital/Spin/spin of particle
spina bifida /4/Medicine/Disease/Kinds/Development/spina bifida
spinal cord /4/Zoology/Organ/Nerve/Spinal Cord/spinal cord
spinning fiber /7/Machine/Kinds/Mechanical/Weaving/spinning fiber
spinning frame /7/Machine/Kinds/Mechanical/Weaving/spinning frame
spinning jenny /7/Machine/Kinds/Mechanical/Weaving/spinning jenny
spinning wheel /7/Machine/Kinds/Mechanical/Weaving/spinning wheel
spinor /3/Calculus/Vector/Kinds/spinor
spiracle /4/Zoology/Organ/Respiration/Parts/spiracle
spirit lamp /7/Machine/Kinds/Illumination/Lighting/Lamp/spirit lamp
spirit level /5/Physics/Measurement/Kinds/Surveying/spirit level
spiritism /6/Religion/Belief/spiritism
spirometer /7/Machine/Kinds/Instrument/spirometer
spit /7/Machine/Kinds/Mechanical/Rotation/spit
splay foot /4/Medicine/Disease/Kinds/Organ/Skeleton/splay foot
spleen /4/Zoology/Organ/Blood/Parts/spleen
split shift /6/Economics/Microeconomics/Production/Factors/Labor/Job/Shift/split shift
spoiler /7/Machine/Transportation/Vehicle/Automobile/Parts/spoiler
spoils system /6/Political Science/Actions/Money/spoils system
spontaneous generation /4/Biology/Life/spontaneous generation
spontaneous process /5/Physics/Heat/Statistical Mechanics/spontaneous process
spoonerism /6/Linguistics/Communication/spoonerism
sporangium /4/Botany/Reproduction/Sexual/sporangium
sporophyte stage /4/Botany/Reproduction/Sexual/Generation Alternation/sporophyte stage
sporulation /4/Biology/Evolution/Reproduction/Asexual/sporulation
sprig /4/Botany/Plant/Vascular/Parts/Tree/sprig
spring tide /5/Earth Science/Water/Ocean/Tide/spring tide
spring, metal /5/Physics/Dynamics/Force/Kinds/Restoring/spring as force
spring, water /5/Earth Science/Water/Fresh/Areas/Spring/spring of water
Springfield rifle /7/Military Affairs/Weapon/Gun/Rifle/Springfield rifle
sprinkler /7/Machine/Kinds/Fluid/sprinkler
sprout /4/Botany/Plant/Vascular/Parts/sprout
spur gear /7/Machine/Parts/Gear/Kinds/spur gear
spur, track /7/Machine/Transportation/Vehicle/Train/Track/spur of track
spyware /3/Computer Science/Internet/Programs/Intrusive/Malware/spyware
squall /5/Earth Science/Atmosphere/Wind/Kinds/Storm/squall
squall line /5/Earth Science/Atmosphere/Cloud/squall line
square dance /2/Dance/Kinds/USA/square dance
squash rackets /7/Game/Athletic/Racket/squash rackets
squawk box /7/Machine/Kinds/Electronic/Sound/squawk box
squeegee /7/Machine/Kinds/Fluid/squeegee
St. Elmo's fire /5/Physics/Electromagnetism/Charge/St. Elmo's fire
St. Vitus' dance /4/Medicine/Disease/Kinds/Organ/Nerve/Muscle/Chorea/St. Vitus' dance
staff, music /2/Music/Notation/Staff/staff in music
stalactite /5/Earth Science/Water/Fresh/Cave/stalactite
stalagmite /5/Earth Science/Water/Fresh/Cave/stalagmite
stamen /4/Botany/Plant/Vascular/Angiosperm/Flower/Parts/Stamen/stamen
standard deviation /3/Statistics/Statistical Population/Statistic/Moment/standard deviation
standard error of the mean /3/Statistics/Statistical Population/Statistic/Moment/standard error of the mean
standardization /6/Economics/Microeconomics/Production/Technology/standardization
stanol /5/Chemistry/Biochemistry/Lipid/Kinds/Steroid/stanol
stapler /7/Machine/Kinds/Mechanical/Stapler/stapler
starch, plant /5/Chemistry/Biochemistry/Carbohydrate/Carbohydrates/Polymer/starch polymer
stare decisis /6/Law/Kinds/Case Law/stare decisis
starvation /4/Medicine/Disease/Kinds/Nutrition/starvation
state capitalism /6/Economics/Macroeconomics/Economy/Types/state capitalism
state change /5/Physics/Heat/Phase/state change
state cycle /3/Computer Science/System Analysis/States/Trajectory/Terminus/state cycle
state monopoly /6/Economics/Macroeconomics/Economy/Types/state monopoly
state socialism /6/Economics/Macroeconomics/Economy/Types/Socialism/state socialism
state space /3/Group Theory/State Space/state space
statecraft /6/Political Science/International Relations/statecraft
state's evidence /6/Law/Trial/Witness/Testimony/state's evidence
states' rights /6/Political Science/Government/states' rights
static electricity /5/Physics/Electromagnetism/Charge/static electricity
statistical mechanics /5/Physics/Heat/Statistical Mechanics/statistical mechanics
statute /6/Law/Kinds/Statutory Law/statute law
statute of limitations /6/Law/Kinds/statute of limitations
statutory law /6/Law/Kinds/Statutory Law/statutory law
statutory rape /6/Law/Crime/Crimes/Sex/statutory rape
steam engine /7/Machine/Kinds/Engine/Kinds/steam engine
steam iron /7/Machine/Kinds/Electric/Heat/Iron/steam iron
steam turbine /7/Machine/Kinds/Engine/Kinds/Turbine/steam turbine
steamroller /7/Machine/Transportation/Vehicle/steamroller
steel making /7/Machine/Kinds/Heat/Furnace/steel making
stem cell /4/Cell/Kinds/stem cell
stem, plant /4/Botany/Plant/Vascular/Parts/Stem/stem
stem, word /6/Linguistics/Grammar/Inflection/Root/stem in grammar
stenography /6/Linguistics/Writing/Method/stenography
stenosis /4/Medicine/Disease/Kinds/Organ/Circulation/Blockage/stenosis
stenotype /7/Machine/Kinds/Mechanical/stenotype
steppe /5/Earth Science/Planet/Climate/Kinds/Dry/steppe
steradian, solid angle /3/Geometry/Solid/Sphere/Spherical Angle/steradian
stereo system /7/Machine/Kinds/Electronic/Sound/stereo system
stereogram /1/Consciousness/Sense/Vision/Techniques/stereogram
stereoisomer /5/Chemistry/Organic/Bond Orientation/Isomer/Stereo/stereoisomer
stereoscope /2/Photography/stereoscope
stereotaxic surgery /4/Medicine/Medical Treatments/Surgery/Techniques/stereotaxic surgery
stereotype /6/Psychology/Attitude/stereotype
steric hindrance /5/Chemistry/Organic/Bond Orientation/steric hindrance
sterility /4/Genetics/Chromosome/sterility
sternum /4/Zoology/Organ/Skeleton/Bones/Trunk/Sternum/sternum
steroid hormone /5/Chemistry/Biochemistry/Lipid/Kinds/Steroid/steroid hormone
sterol /5/Chemistry/Biochemistry/Lipid/Kinds/Steroid/sterol
stethoscope /4/Medicine/Medical Examination/Instruments/stethoscope
stigma, flower /4/Botany/Plant/Vascular/Angiosperm/Flower/Parts/Pistil/stigma of flower
still, alcohol /7/Machine/Kinds/Fluid/still
stillborn /4/Medicine/Disease/Kinds/Organ/Reproduction/stillborn
stimulant /4/Medicine/Drug/Kinds/Stimulant/stimulant
stipend /6/Economics/Microeconomics/Production/Factors/Labor/Job/Money/stipend
stirrup bone /1/Consciousness/Sense/Hearing/Anatomy/Ear/Middle Ear/Bones/stirrup bone
stochastic process /3/Statistics/Events/stochastic process
stoichiometry /5/Chemistry/Inorganic/Chemical Reaction/Equation/stoichiometry
stomach /4/Zoology/Organ/Digestion/Parts/Stomach/stomach
stomata /4/Botany/Plant/Vascular/Parts/Leaf/stomata
stool, feces /4/Medicine/Medical Examination/stool as feces
stop order /7/Financial Affairs/Investing/Stock/stop order
stop payment order /7/Financial Affairs/Banking/Checking/stop payment order
stopcock /7/Machine/Kinds/Fluid/Faucet/stopcock
storage cell /5/Chemistry/Inorganic/Oxidation-Reduction/Battery/storage cell
strabismus /1/Consciousness/Sense/Vision/Problems/strabismus
strain /5/Physics/Dynamics/Pressure/strain
strait /5/Earth Science/Water/Ocean/Areas/strait in ocean
strand, shore /5/Earth Science/Land/Land Forms/Shore/strand shore
strange attractor /3/Computer Science/Systems/Complexity Theory/strange attractor
strata /6/Sociology/Society/Social Class/strata
stratosphere /5/Earth Science/Atmosphere/Layers/stratosphere
stratus cloud /5/Earth Science/Atmosphere/Cloud/Kinds/stratus cloud
straw /4/Botany/Plant/Vascular/Parts/straw of grass
strawberry mark /4/Zoology/Organ/Skin/Features/Birthmark/strawberry mark
straw-man fallacy /3/Logic/Fallacy/Irrelevance/straw-man fallacy
stream of consciousness /1/Consciousness/Subjectivity/stream of consciousness
streamline flow /5/Physics/Dynamics/Fluid/Flow/streamline flow
strep throat /4/Medicine/Disease/Kinds/Organism/Bacteria/strep throat
stress, emotion /6/Psychology/Cognition/Emotion/Kinds/stress as emotion
stress, physics /5/Physics/Dynamics/Pressure/Stress/stress in physics
strict implication /3/Logic/Rules/strict implication
strike, worker /6/Economics/Microeconomics/Production/Factors/Labor/Strike/strike by workers
string instrument /2/Music/Instrument/Categories/String Instrument/string instrument
strobe light /7/Machine/Kinds/Illumination/Lighting/strobe light
stroke /4/Medicine/Disease/Kinds/Organ/Circulation/Blockage/stroke
strong nuclear force /5/Physics/Dynamics/Force/Kinds/strong nuclear force
strut /5/Physics/Dynamics/Machine/strut
stupa /2/Art/Architecture/Building Parts/Wall/Niche/stupa
sty /4/Medicine/Disease/Kinds/Organism/Bacteria/sty
subassembly /7/Machine/Kinds/Mechanical/subassembly
subatomic particle /5/Physics/Matter/Particle/Subatomic/subatomic particle
subconsciousness /1/Consciousness/States/subconsciousness
subdominant tone /2/Music/Theory/Scale/Scales/Diatonic/Tone/subdominant tone
subduction, plate /5/Earth Science/Planet/Plate Tectonics/Mountain Building/subduction
subjective contour /1/Consciousness/Sense/Vision/Physiology/Contour/subjective contour
sublimation, heating /5/Physics/Heat/Phase/Gas/sublimation of phase
sublime /6/Philosophy/Aesthetics/sublime
subliminal learning /6/Psychology/Cognition/Learning/Kinds/subliminal learning
subliminal perception /6/Psychology/Cognition/Perception/Properties/subliminal perception
subpoena /6/Law/Trial/Documents/subpoena court order
subsistence economy /6/Economics/Macroeconomics/Economy/Stages/subsistence economy
substance P /4/Zoology/Organ/Endocrine Gland/Hormone/Nerve/Gut/substance P
substituent group /5/Chemistry/Organic/Chemical/substituent group
subtend /3/Geometry/Plane/Circle/subtend
subtropical /5/Earth Science/Planet/Climate/Kinds/Latitude/subtropical region
suburb /6/Sociology/City/Part/suburb
succession of states /6/Law/National/International Law/State Relations/succession of states
succession, species /4/Ecology/Community/Succession/succession of life
sudden infant death syndrome /4/Medicine/Disease/Kinds/Organ/Respiration/sudden infant death
Sudoku /7/Game/Puzzle/Sudoku
suffering, emotion /6/Psychology/Cognition/Emotion/Kinds/suffering as emotion
sufficient cause /6/Philosophy/Epistemology/Causation/Kinds/Required/sufficient cause
sufficient reason principle /6/Philosophy/Epistemology/Thinking/Principles/sufficient reason principle
suffix /6/Linguistics/Grammar/Inflection/Affix/suffix
suffrage /6/Political Science/Rights/Government/Voting/suffrage
sugar /5/Chemistry/Biochemistry/Carbohydrate/Carbohydrates/Sugar/sugar molecule
suggestibility /6/Psychology/Cognition/Memory/Errors/suggestibility
suicide /6/Psychology/Suicide/suicide
suit, law /6/Law/Lawsuit/suit in law
summer solstice /5/Astronomy/Solar System/Axis Tilt/summer solstice
summons /6/Law/Trial/Documents/summons in law
sump /7/Machine/Kinds/Fluid/Pump/sump
sun dog /5/Earth Science/Atmosphere/Weather/sun dog
sundial /7/Machine/Kinds/Optical/sundial
sunspot /5/Astronomy/Star/Sun/Layers/sunspot
supercavitation, fluid /5/Physics/Dynamics/Fluid/supercavitation
supercharger /7/Machine/Kinds/Engine/supercharger
superconductivity /5/Physics/Electromagnetism/Conductivity/Superconductivity/superconductivity
supercooling /5/Physics/Heat/Phase/Liquid/supercooling
supererogation /6/Philosophy/Ethics/Feelings/supererogation
superfluid /5/Physics/Heat/Cryogenics/superfluid
supergravity /5/Physics/Quantum Mechanics/Theory/Quantum Relativity/Theories/supergravity
superheterodyne /7/Machine/Kinds/Electronic/Effects/Multiplexing/superheterodyne
superhydrophobicity /5/Physics/Dynamics/Fluid/superhydrophobicity
superlative degree /6/Linguistics/Grammar/Syntax/Adjective/Degree/superlative degree
superlens /7/Machine/Kinds/Optical/Lens/superlens
supernaturalism /6/Religion/Belief/supernaturalism
supernova /5/Astronomy/Star/Kinds/supernova
superposition, wave /5/Physics/Wave/Superposition/superposition of waves
supersaturated /5/Chemistry/Inorganic/Phase/Solution/Concentration/Level/supersaturated
superstring theory /5/Physics/String Theory/superstring theory
superweak force /5/Physics/Dynamics/Force/Kinds/superweak force
supplementary angle /3/Geometry/Plane/Angle/Kinds/supplementary angle
suppression, learning /6/Psychology/Cognition/Learning/Kinds/Conditioning/Forgetting/suppression in learning
surcharge /6/Economics/Microeconomics/Business/Department/Sales/Charges/surcharge
surety /7/Financial Affairs/Loan/Collateral/surety
surface tension /5/Physics/Dynamics/Fluid/Cohesion/surface tension
surfing /7/Game/Athletic/Water/surfing
surgery /4/Medicine/Medical Treatments/Surgery/surgery
surplus /6/Economics/Microeconomics/Market/Restrictions/surplus
surrogate, law /7/Legal Affairs/Death/Will/People/surrogate in law
survival function /4/Medicine/Medical Treatments/Medical Testing/survival function
survival of the fittest, selection /4/Biology/Evolution/Selection/survival of the fittest
survival phenomena /6/Psychology/Parapsychology/Kinds/survival phenomena
survival rate /4/Ecology/Community/Population/Growth/Rate/survival rate
survivorship /7/Legal Affairs/Death/Will/Probate/survivorship
suspended animation /1/Consciousness/States/Exceptional States/suspended animation
suspension /5/Chemistry/Inorganic/Phase/Mixture/Particle Size/suspension mixture
suspension bridge /7/Machine/Kinds/Mechanical/suspension bridge
sustainable development /6/Economics/Macroeconomics/Economy/Stages/Growth/sustainable development
suture /4/Medicine/Medical Treatments/Surgery/Techniques/suture
suzerainty /6/Law/National/International Law/State Relations/Kinds/suzerainty
swamp /4/Ecology/Ecosystem/Bione/Water/Swamp/swamp as marsh
swapping /3/Computer Science/Software/Operating System/Operations/swapping
swayback /4/Zoology/Organ/Skeleton/Body/Trunk/swayback
sweat /4/Zoology/Organ/Skin/sweat
swim bladder /4/Zoology/Kinds/Fish/swim bladder
swimming /7/Game/Athletic/Water/swimming
swing shift /6/Economics/Microeconomics/Production/Factors/Labor/Job/Shift/swing shift
switch, machine /7/Machine/Kinds/Electric/Switch/switch
switchboard /7/Machine/Kinds/Electronic/switchboard
switching network /3/Computer Science/Hardware/switching network
swivel /7/Machine/Kinds/Mechanical/Rotation/Joint/Swivel/swivel
syllable /6/Linguistics/Grammar/Inflection/syllable
syllabus /2/Literature/Prose/Kinds/Document/syllabus
sylvian fissure /4/Zoology/Organ/Nerve/Brain/Cerebrum/sylvian fissure
symbiosis /4/Ecology/Community/Species Relations/symbiosis
sympathetic autonomic system /4/Zoology/Organ/Nerve/Systems/Function/sympathetic autonomic system
sympathetic magic /6/Sociology/Subjects/Anthropology/Magic/sympathetic magic
synagogue /6/Religion/Religions/Judaism/synagogue
synapse /4/Zoology/Organ/Nerve/Neuron/Parts/synapse
synaptic cleft /4/Zoology/Organ/Nerve/Neuron/Parts/synaptic cleft
synaptic terminal /4/Zoology/Organ/Nerve/Neuron/Parts/synaptic terminal
synaptic vesicle /4/Zoology/Organ/Nerve/Neuron/Parts/synaptic vesicle
synchromesh /7/Machine/Parts/Gear/synchromesh
synchrotron radiation /5/Physics/Wave/Electromagnetic/Frequency/Radiation Types/synchrotron radiation
syncopation /2/Music/Classical/Styles/syncopation
synctitium /4/Cell/Kinds/synctitium
synctium /4/Cell/Kinds/synctium
syndicalism /6/Economics/Macroeconomics/Economy/Types/Market/syndicalism
syndicate /6/Economics/Microeconomics/Business/Kinds/Group/syndicate
syndrome, medicine /4/Medicine/Medical Examination/syndrome
synergy, behavior /6/Psychology/Behavior/synergy in behavior
synesthesia, perception /6/Psychology/Cognition/Perception/Properties/synesthesia in perception
syngamy /4/Zoology/Organ/Reproduction/Gamete/syngamy
synonym, word /6/Linguistics/Semantics/Word/Relations/synonym
synopsis /2/Literature/Prose/Kinds/Condensation/synopsis
syntax /6/Linguistics/Grammar/Syntax/syntax
synthetic fiber /7/Machine/Industrial Materials/Organic Chemical/Polymer/synthetic fiber
synthetic statement /6/Philosophy/Epistemology/Thinking/Statement/synthetic statement
syphilis /4/Medicine/Disease/Kinds/Organism/Bacteria/syphilis
syringe /7/Machine/Kinds/Fluid/Tube/syringe
syrinx /4/Zoology/Organ/Respiration/Parts/Throat/syrinx
systole /4/Zoology/Organ/Circulation/Pulse/systole
Outline of Knowledge Database Home Page
Description of Outline of Knowledge Database
Date Created: 2022.0223