a capella /2/Music/Classical/Styles/a capella
a posteriori truth /6/Philosophy/Epistemology/Truth/Kinds/a posteriori truth
a priori truth /6/Philosophy/Epistemology/Truth/Kinds/a priori truth
abacus, calculator /7/Machine/Kinds/abacus calculator
abominable snowman /4/Zoology/Animals/abominable snowman
abrasion, surface /5/Physics/Dynamics/Friction/abrasion
abridgment /2/Literature/Prose/Kinds/Condensation/abridgment
abscess /4/Medicine/Disease/Kinds/Organ/Skin/Pus/abscess
absenteeism /6/Economics/Microeconomics/Production/Factors/Labor/Job/absenteeism
absent-mindedness /6/Psychology/Cognition/Memory/Errors/absent-mindedness
absolute pitch /1/Consciousness/Sense/Hearing/absolute pitch
absolute zero temperature /5/Physics/Heat/Temperature/absolute zero temperature
absorption spectra /5/Physics/Matter/Atom/Wavelength Change/Spectra/absorption spectra
abstract, article /2/Literature/Prose/Kinds/Condensation/abstract summary
abstractionism /2/Art/Painting/Categories/abstractionism art
abyss /5/Earth Science/Land/Land Forms/Low Area/abyss
academe /6/Education/Levels/academe
academic freedom /6/Education/Teaching/academic freedom
acceleration /5/Physics/Kinetics/Motion Types/Acceleration/acceleration in kinetics
acceleration principle /6/Economics/Macroeconomics/Economic Cycle/acceleration principle
accent, phonetics /6/Linguistics/Phonetics/Modulation/Accent/accent of syllable
accidence /6/Linguistics/Grammar/Inflection/accidence in grammar
accidental feature /6/Psychology/Cognition/Perception/Features/accidental feature
acclamation /6/Political Science/Voting/acclamation
accounting /6/Economics/Microeconomics/Business/Department/accounting
acculturation /6/Sociology/Culture/acculturation
accuracy /5/Physics/Measurement/Methods/accuracy
accusatorial system /6/Law/National/English Law/accusatorial system
achievement /6/Psychology/Intelligence/achievement
acidity /5/Chemistry/Inorganic/Acid-Base/acidity
acidosis /4/Medicine/Disease/Kinds/Organ/Circulation/Blood/acidosis
acne /4/Medicine/Disease/Kinds/Organism/Bacteria/Skin/acne
acorn worm /4/Zoology/Kinds/Deuterostomes/Hemichordata/acorn worm
acoustics /2/Music/Instrument/acoustics
acquittal /6/Law/Trial/Decision/acquittal
acromegaly /4/Medicine/Disease/Kinds/Organ/Endocrine/acromegaly
acronym /6/Linguistics/Semantics/Word/Relations/acronym
acrostic /2/Literature/Poetry/Kinds/Humorous/acrostic
actinic light /7/Machine/Kinds/Illumination/Lighting/actinic light
action, physics /5/Physics/Dynamics/action in physics
activation energy /5/Chemistry/Inorganic/Chemical Reaction/Energy/activation energy
active voice /6/Linguistics/Grammar/Syntax/Verb/Voice/active voice
actuary /6/Economics/Microeconomics/Finance/actuary
acupuncture /1/Consciousness/Sense/Pain/Physiology/Pain Relief/acupuncture
acute accent /6/Linguistics/Writing/Symbol/Letter Accent/acute accent
acute angle /3/Geometry/Plane/Angle/Kinds/acute angle
ad hominem argument /3/Logic/Fallacy/Irrelevance/ad hominem argument
adage /2/Literature/Prose/Expressions/Sayings/adage
adam's apple /4/Zoology/Organ/Respiration/Parts/Throat/adam's apple
adaptability /6/Psychology/Intelligence/adaptability
adaptation, organism /4/Biology/Evolution/Adaptation/adaptation of organism
adaptive walk /3/Computer Science/Systems/Evolution Theories/adaptive walk
addendum /2/Literature/Book Parts/addendum
adding machine /7/Machine/Kinds/Electromechanical/Calculator/adding machine
adenoid /4/Zoology/Organ/Lymph/adenoid
adhesion, cell /4/Cell/Protein/Adhesion/adhesion of cells
adhesion, surface /5/Physics/Dynamics/Fluid/Adhesion/adhesion of surfaces
adiabatic /5/Physics/Heat/Flow/adiabatic
adipose tissue /4/Zoology/Tissue/adipose tissue
adjective /6/Linguistics/Grammar/Syntax/Adjective/adjective
adjudication /6/Law/Trial/Decision/adjudication
adjuvant /4/Medicine/Drug/Immunity/adjuvant
adolescence /4/Zoology/Development/Stages/Adolescent 12-18 Years/adolescence
adrenal corticoid hormone /4/Zoology/Organ/Endocrine Gland/Hormone/Ion/adrenal corticoid hormone
adrenal gland /4/Zoology/Organ/Endocrine Gland/Glands/adrenal gland
adrenocorticotropin /4/Zoology/Organ/Endocrine Gland/Hormone/Sugar/adrenocorticotropin
adsorption /5/Chemistry/Inorganic/Phase/adsorption to surface
adultery /6/Law/Crime/Crimes/Sex/adultery
adventitious root /4/Botany/Plant/Vascular/Parts/Root/Type/adventitious root
adverb /6/Linguistics/Grammar/Syntax/Adverb/adverb
advertising /6/Economics/Microeconomics/Business/Department/advertising
aerator /7/Machine/Kinds/Fluid/Air/aerator
aerial perspective /1/Consciousness/Sense/Vision/Physiology/Depth Perception/Cue/aerial perspective
aerie /4/Zoology/Kinds/Bird/aerie
aerobe /4/Ecology/Community/Food Chain/Organism Types/Aerobe/aerobe
aerodynamics /7/Machine/Engineering/aerodynamics
aeronautics /7/Machine/Engineering/aeronautics
aerosol /5/Chemistry/Inorganic/Phase/Mixture/aerosol suspension
aerosol can /7/Machine/Kinds/Fluid/Spray/aerosol can
aesthetics /6/Philosophy/Aesthetics/aesthetics
affidavit /6/Law/Trial/Documents/affidavit
affinity, reaction /5/Chemistry/Inorganic/Chemical Reaction/Activity/affinity in chemistry
affirming the consequent /3/Logic/Fallacy/Deduction/affirming the consequent
affix, word /6/Linguistics/Grammar/Inflection/Affix/affix noun
affordance /6/Psychology/Behavior/affordance
afterbirth /4/Zoology/Organ/Reproduction/Birth/afterbirth
afterburner /7/Machine/Kinds/Engine/Kinds/Jet/afterburner
aftereffect /1/Consciousness/Sense/Vision/Illusions/aftereffect
afterword /2/Literature/Book Parts/afterword
agar /5/Chemistry/Biochemistry/Carbohydrate/Carbohydrates/Polymer/agar
agate /5/Earth Science/Mineral/Kinds/Silicates/Quartz/agate
age of consent /6/Psychology/Family/Majority/age of consent
agency, law /7/Legal Affairs/Agency/agency in law
agent, Internet /3/Computer Science/Internet/Programs/agent on Internet
aggravated assault /6/Law/Crime/Crimes/Violent/aggravated assault
aggression, behavior /6/Psychology/Behavior/Kinds/Aggression/aggression in behavior
agnosticism /6/Philosophy/Epistemology/Theory/Agnosticism/agnosticism
agoraphobia /6/Psychology/Defense Mechanism/Phobia/agoraphobia
agrology /6/Economics/Microeconomics/Agriculture/agrology
agronomy /6/Economics/Microeconomics/Agriculture/agronomy
ague /4/Medicine/Disease/Kinds/Fever/ague
air bladder /4/Zoology/Organ/Respiration/Parts/air bladder
air conditioner /7/Machine/Kinds/Electromechanical/Cooling/air conditioner
air inversion /5/Earth Science/Atmosphere/Inversion Layer/air inversion
air lock /7/Machine/Kinds/Fluid/Air/air lock
air mass /5/Earth Science/Atmosphere/Weather/air mass
air pressure /5/Earth Science/Atmosphere/Weather/air pressure
air space /6/Law/National/International Law/Territory/air space
airplane /7/Machine/Transportation/Vehicle/Airplane/Kinds/airplane
albinism /4/Medicine/Disease/Kinds/Genetic Disease/albinism
albumin, plasma /4/Zoology/Organ/Blood/Parts/Plasma/albumin
alcohol, chemical /5/Chemistry/Organic/Chemical/Alcohol/alcohol as compound
aldehyde /5/Chemistry/Organic/Chemical/Carbonyl/Aldehyde/aldehyde
aldosterone /4/Zoology/Organ/Endocrine Gland/Hormone/Ion/aldosterone
alertness /1/Consciousness/Sense/Experience/Properties/alertness
alga /4/Botany/Algae/alga
algorithm /3/Computer Science/Software/Algorithm/algorithm
alien hand syndrome /4/Medicine/Disease/Kinds/Organ/Nerve/Muscle/Hand/alien hand syndrome
alien, foreigner /6/Law/National/International Law/Alien/alien in law
alienation, psychology /6/Psychology/Family/alienation
alimentary canal /4/Zoology/Kinds/Chordate/Tubes/alimentary canal
alimony /7/Legal Affairs/Marriage/Divorce/Agreements/alimony
aliphatic /5/Chemistry/Organic/Chemical/Alkane/aliphatic
aliquot /4/Genetics/Recombinant DNA/Sample/aliquot of sample
alkane /5/Chemistry/Organic/Chemical/Alkane/alkane
alkene /5/Chemistry/Organic/Chemical/Alkene/alkene
alkyne /5/Chemistry/Organic/Chemical/Alkyne/alkyne
allegory /2/Literature/Prose/Kinds/Story/allegory
allele /4/Genetics/Allele/allele
allergic reaction /4/Medicine/Disease/Kinds/Organ/Immune/Allergy/allergic reaction
allergy /4/Medicine/Disease/Kinds/Organ/Immune/Allergy/allergy
alliteration /2/Literature/Poetry/Rhyme/alliteration
allocution /2/Literature/Prose/Expressions/Speaking Methods/allocution
allograph /7/Machine/Kinds/Printing/Font/allograph
allotrope /5/Chemistry/Inorganic/Chemical/Element/allotrope
alloy /5/Chemistry/Inorganic/Phase/Solution/Type/alloy
allusion /2/Literature/Literary Techniques/allusion
alluvial soil /5/Earth Science/Land/Soil/Kinds/alluvial soil
almanac /2/Literature/Prose/Kinds/Book/Nonfiction/almanac
alp /5/Earth Science/Land/Land Forms/High Area/alp
alpha particle, atom /5/Physics/Matter/Particle/Subatomic/alpha particle in atom
alternating current /5/Physics/Electromagnetism/Current/Kinds/alternating current
alternation of generations /4/Botany/Reproduction/Sexual/Generation Alternation/alternation of generations
alternator /7/Machine/Kinds/Electromechanical/Generator/alternator
altimeter /7/Machine/Kinds/Instrument/altimeter
altitude /3/Geometry/Plane/Polygon/Kinds/Triangle/Line/altitude of triangle
altitude sickness /4/Medicine/Disease/Kinds/Organ/Respiration/altitude sickness
alto /2/Music/Classical/Choral/alto
altruism, ecology /4/Ecology/Community/altruism in ecology
altruism, people /6/Philosophy/Ethics/Feelings/altruism in ethics
alveoli /4/Zoology/Organ/Respiration/Parts/Lung/alveoli
amalgam /5/Chemistry/Inorganic/Phase/Solution/Type/amalgam
ambidexterity /6/Psychology/Behavior/Handedness/ambidexterity
ambiguity /2/Literature/Literary Techniques/ambiguity
ambiguous figure /1/Consciousness/Sense/Vision/Illusions/Ambiguous Figures/ambiguous figure
ambrosia, gods /6/Religion/Religions/Mythology/Greco-Roman/Thing/ambrosia of gods
amenorrhea /4/Medicine/Disease/Kinds/Organ/Endocrine/amenorrhea
amensalism /4/Ecology/Community/Species Relations/amensalism
amethyst /5/Earth Science/Mineral/Kinds/Silicates/Quartz/amethyst
amide /5/Chemistry/Organic/Chemical/Carboxylic Acid/Substituted/amide
amine, organic /5/Chemistry/Organic/Chemical/Amine/amine compounds
amino acid /5/Chemistry/Biochemistry/Protein/Kinds/amino acid
ammeter /5/Physics/Electromagnetism/Circuit/Kinds/Instruments/ammeter
ammonite /4/Zoology/Kinds/Mollusc/Cephalopod/ammonite
amnesia, disease /4/Medicine/Disease/Kinds/Organ/Nerve/Amnesia/amnesia disease
amnesty /6/Law/Crime/Punishment/Termination/amnesty
amnion sac /4/Zoology/Development/Stages/Gestation/Embryo 010 Day/amnion sac
amodal perception /6/Psychology/Cognition/Perception/Properties/amodal perception
amoebic dysentery /4/Medicine/Disease/Kinds/Organism/Protozoa/amoebic dysentery
amoeboid motion /4/Cell/Movement/amoeboid motion
amorphous solid /5/Chemistry/Inorganic/Phase/Phases/Solid/amorphous solid
amortization /7/Legal Affairs/Property/Housing/Buying/Mortgage/amortization
amortize /6/Economics/Microeconomics/Finance/amortize
ampersand /6/Linguistics/Writing/Symbol/ampersand
amphetamine /4/Medicine/Drug/Kinds/Stimulant/Kinds/amphetamine
amphora /2/Art/Sculpture/Pottery/amphora
amplifier /7/Machine/Kinds/Electronic/Amplifier/amplifier
amplitude, vibration /5/Physics/Kinetics/Motion Types/Vibration/amplitude of vibration
amygdala /4/Zoology/Organ/Nerve/Brain/Brainstem/Hindbrain/Medulla/amygdala
amyloid plaque /4/Medicine/Disease/Kinds/Protein/amyloid plaque
amyotrophic lateral sclerosis /4/Medicine/Disease/Kinds/Organ/Nerve/Muscle/amyotrophic lateral sclerosis
anabolism /4/Cell/Metabolism/anabolism
anachronism /2/Literature/Literary Techniques/anachronism
anaerobe /4/Ecology/Community/Food Chain/Organism Types/Aerobe/anaerobe
anagram /2/Literature/Prose/Expressions/Letter Combinations/anagram
analeptic /4/Medicine/Drug/Kinds/Stimulant/Classes/analeptic
analgesia, pain /1/Consciousness/Sense/Pain/Physiology/Pain Relief/analgesia
analog computer /3/Computer Science/Hardware/Kinds/analog computer
anaphylaxis /4/Medicine/Disease/Kinds/Organ/Immune/Allergy/anaphylaxis
anatomy /4/Biology/Subjects/anatomy
AND gate /3/Computer Science/Hardware/Circuit/Gate/AND gate
AND-OR gate /3/Computer Science/Hardware/Circuit/Gate/AND-OR gate
androgen /4/Zoology/Organ/Endocrine Gland/Hormone/Sex/androgen
androgyny /4/Zoology/Organ/Reproduction/androgyny
anemia /4/Medicine/Disease/Kinds/Organ/Circulation/Blood/anemia
anemometer /7/Machine/Kinds/Instrument/anemometer
aneroid barometer /7/Machine/Kinds/Instrument/aneroid barometer
anesthesia /4/Medicine/Drug/Kinds/Anesthetic/anesthesia
anesthesiology /4/Biology/Subjects/Medicine/anesthesiology
aneuploidy, chromosome /4/Medicine/Disease/Kinds/Genetic Disease/Chromosome/aneuploidy
aneurysm /4/Medicine/Disease/Kinds/Organ/Circulation/Dilation/aneurysm
angel, religion /6/Religion/Spirit Being/angel in religion
angina /4/Medicine/Disease/Kinds/Organ/Circulation/Muscle/angina
angiography /4/Medicine/Medical Examination/Tests/Circulatory/angiography
angiosperm /4/Botany/Plant/Vascular/Angiosperm/angiosperm
angle of incidence /5/Physics/Wave/Superposition/Reflection/angle of incidence
angle of reflection /5/Physics/Wave/Superposition/Reflection/angle of reflection
angular acceleration /5/Physics/Kinetics/Motion Types/Rotation/angular acceleration
angular distance /5/Physics/Kinetics/Motion Types/Rotation/angular distance
angular gyrus /4/Zoology/Organ/Nerve/Brain/Cerebrum/Parietal Lobe/angular gyrus
angular momentum /5/Physics/Dynamics/Momentum/angular momentum
angular velocity /5/Physics/Kinetics/Motion Types/Rotation/angular velocity
anhydrous /5/Chemistry/Inorganic/Chemical/Molecule/Water/anhydrous
animal husbandry /4/Biology/Subjects/Agriculture/animal husbandry
animism, religion /6/Religion/Belief/Animism/animism
anion /5/Chemistry/Inorganic/Chemical Bond/Ion/anion
ankh /6/Linguistics/Writing/Symbol/Pictogram/ankh
anklebone /4/Zoology/Organ/Skeleton/Bones/Extremity/Leg/anklebone
annelid /4/Zoology/Kinds/Annelid/annelid
anniversary /7/Holiday/anniversary
annotation /2/Literature/Book Parts/annotation
annual /4/Botany/Plant/Vascular/Parts/Stem/Herbaceous/annual plant
annual percentage rate /7/Financial Affairs/Loan/annual percentage rate
annual ring /4/Botany/Plant/Vascular/Parts/Stem/Woody/annual ring
annuity /6/Economics/Microeconomics/Production/Factors/Labor/Job/Benefit/annuity
annulment /7/Legal Affairs/Marriage/Divorce/annulment
annulus /3/Geometry/Plane/Circle/annulus
anode, cell /5/Chemistry/Inorganic/Oxidation-Reduction/Cell/Electrode/anode
anodized /5/Chemistry/Inorganic/Oxidation-Reduction/Corrosion/anodized
anoesis /1/Consciousness/Concepts/anoesis
anomie /6/Sociology/Sociological Group/Psychology/anomie
anorexia nervosa /4/Medicine/Disease/Kinds/Organ/Nerve/Food/anorexia nervosa
anoxia /4/Medicine/Disease/Kinds/Organ/Nerve/Trauma/anoxia
ant, Internet /3/Computer Science/Internet/Programs/Robots/ant on Internet
antagonist, literature /2/Literature/Prose/Theory/Characters/antagonist in literature
Antarctic Circle /5/Earth Science/Planet/Earth Coordinates/Latitude/Antarctic Circle
anthem /2/Music/Classical/Composition Types/anthem
anther /4/Botany/Plant/Vascular/Angiosperm/Flower/Parts/Stamen/Anther/anther
anthology /2/Literature/Prose/Kinds/Book/anthology
anthrax /4/Medicine/Disease/Kinds/Organism/Bacteria/anthrax
anthropology /6/Sociology/Subjects/Anthropology/anthropology
anthropomorphism /6/Psychology/Techniques/Validity/anthropomorphism
antibiotic /4/Medicine/Drug/Kinds/Antibiotic/antibiotic
antibody /5/Chemistry/Biochemistry/Protein/Kinds/Immunity/antibody
anticonvulsant /4/Medicine/Drug/Kinds/Mental Illness/Anticonvulsant/anticonvulsant
antidepressant drug /4/Medicine/Drug/Kinds/Mental Illness/Antidepressant/antidepressant drug
antidiuretic hormone, endocrine /4/Zoology/Organ/Endocrine Gland/Hormone/Ion/antidiuretic hormone
antigen /5/Chemistry/Biochemistry/Protein/Kinds/Immunity/antigen
anti-inflammatory drug /4/Medicine/Drug/Kinds/Pain/Prostaglandin/anti-inflammatory drug
antimatter /5/Physics/Matter/Particle/antimatter general
antipodes, geometry /3/Geometry/Solid/Sphere/Point/antipodes of sphere
antipsychotic /4/Medicine/Drug/Kinds/Mental Illness/antipsychotic
antipyretic /4/Medicine/Drug/Classes/antipyretic
antisense RNA /4/Genetics/Recombinant DNA/Gene Expression/antisense RNA
antiseptic /4/Medicine/Drug/Classes/antiseptic
antitoxin /4/Medicine/Drug/Classes/antitoxin
antonym /6/Linguistics/Semantics/Word/Relations/antonym
anus /4/Zoology/Organ/Digestion/Parts/Colon/anus
anvil bone /1/Consciousness/Sense/Hearing/Anatomy/Ear/Middle Ear/Bones/anvil bone
anxiety reaction /4/Medicine/Disease/Kinds/Organ/Nerve/Mental/Neurosis/anxiety reaction
aorta /4/Zoology/Organ/Circulation/Parts/Artery/aorta
apartheid /6/Sociology/Minority/apartheid
apathy /4/Medicine/Disease/Kinds/Organ/Nerve/Mental/apathy
aperture /5/Physics/Wave/Superposition/Refraction/Lens/aperture
aphasia /4/Medicine/Disease/Kinds/Organ/Nerve/Language/aphasia
aphorism /2/Literature/Prose/Expressions/Humorous/aphorism
aphrodisiac /4/Zoology/Organ/Reproduction/Sex Methods/aphrodisiac
apnea /4/Medicine/Disease/Kinds/Organ/Respiration/apnea
apostle, Jesus /6/Religion/Religions/Christianity/People/apostle
apostrophe symbol /6/Linguistics/Writing/Symbol/Punctuation/apostrophe symbol
apparent motion /1/Consciousness/Sense/Vision/Physiology/Motion/Spots/apparent motion
appeal /6/Law/Trial/Documents/appeal in law
appendectomy /4/Medicine/Medical Treatments/Surgery/Kinds/appendectomy
appendicitis /4/Medicine/Disease/Kinds/Organ/Digestion/appendicitis
appendix, book /2/Literature/Book Parts/appendix
appendix, intestine /4/Zoology/Organ/Digestion/Parts/Colon/appendix of body
apperception, self-conscious /1/Consciousness/Self-Consciousness/apperception and consciousness
application-specific integrated circuit /7/Machine/Kinds/Electronic/Parts/Chip/application-specific integrated circuit
apposition /6/Linguistics/Grammar/Syntax/Noun/apposition
apprehension span, memory /6/Psychology/Cognition/Memory/Properties/apprehension span of memory
apse /2/Art/Architecture/Building Parts/Room/Parts/apse
aptitude /6/Psychology/Intelligence/aptitude
aqualung /7/Machine/Kinds/Fluid/Air/aqualung
aquatint /7/Machine/Kinds/Printing/Kinds/aquatint
aqueduct /2/Art/Architecture/Buildings/Waterway/aqueduct waterway
aqueous humor /1/Consciousness/Sense/Vision/Anatomy/Eye/Fluid/aqueous humor
aquifer /5/Earth Science/Water/Fresh/Soil/aquifer
arabesque /2/Dance/Ballet/Poses/arabesque
Arabic numeral /3/Number Theory/Numeral/Arabic numeral
arachnid /4/Zoology/Kinds/Arthropod/Insect/Arachnida/arachnid
arbitrage /6/Economics/Macroeconomics/International Trade/arbitrage
arbitration, law /6/Law/National/International Law/Arbitration/arbitration
arbor /5/Earth Science/Land/Land Forms/Vegetation/arbor
arboreal /4/Zoology/Kinds/Monkey/New World/arboreal
arc lamp /7/Machine/Kinds/Illumination/Lighting/arc lamp
arch, building /2/Art/Architecture/Building Parts/Arch/arch of building
archangel, Christianity /6/Religion/Religions/Christianity/People/archangel of Christianity
archery /7/Game/Athletic/archery
Archimedes principle, buoyancy /5/Physics/Dynamics/Fluid/Buoyancy/Archimedes principle
archipelago /5/Earth Science/Land/Land Forms/Shore/archipelago islands
architrave /2/Art/Architecture/Building Parts/Greek Temple/architrave
archive /2/Literature/Prose/Kinds/Book/archive
Arctic Circle /5/Earth Science/Planet/Earth Coordinates/Latitude/Arctic Circle
arginine vasopressin /4/Zoology/Organ/Endocrine Gland/Hormone/Ion/arginine vasopressin
argot /6/Linguistics/Language/Usage/Jargon/argot
arhythmia /4/Medicine/Disease/Kinds/Organ/Circulation/Muscle/arhythmia
aria /2/Music/Classical/Composition Types/Opera/aria
arid climate /5/Earth Science/Planet/Climate/Kinds/Dry/arid climate
aridity /5/Earth Science/Atmosphere/Water/aridity
aristocracy /6/Political Science/Government/Kinds/aristocracy
armed forces /6/Law/National/International Law/Alien/armed forces
aromatic compound /5/Chemistry/Organic/Chemical/Aryl/aromatic
arousal /1/Consciousness/arousal
arpeggio /2/Music/Notation/Note Changes/arpeggio
arraignment /6/Law/Criminal Charge/arraignment
arrest warrant /6/Law/Trial/Documents/arrest warrant
arrow of time /5/Physics/Time/Asymmetry/arrow of time
arroyo /5/Earth Science/Land/Land Forms/Low Area/arroyo
arson /6/Law/Crime/Crimes/Violent/arson
arteriole /4/Zoology/Organ/Circulation/Parts/Artery/arteriole
artery /4/Zoology/Organ/Circulation/Parts/Artery/artery
artesian well /5/Earth Science/Water/Fresh/Soil/artesian well
arthralgia /4/Medicine/Disease/Kinds/Organ/Skeleton/Joint/arthralgia
arthritis /4/Medicine/Disease/Kinds/Organ/Skeleton/Joint/arthritis
article /6/Linguistics/Grammar/Syntax/Adjective/Article/article
articulation /6/Linguistics/Phonetics/Articulation/articulation
artificial intelligence /3/Computer Science/Systems/Artificial Intelligence/artificial intelligence
artificial respiration /7/Personal Affairs/Health/First Aid/artificial respiration
ascus /4/Botany/Fungus/Spore Formation/ascus
aseptic /4/Medicine/Clean/aseptic
asexual reproduction /4/Biology/Evolution/Reproduction/Asexual/asexual reproduction
ashing /5/Chemistry/Analytical Chemistry/ashing
aside /2/Literature/Drama/Dialogue/aside
aspect /6/Linguistics/Grammar/Syntax/Verb/aspect of verb
asphyxia /4/Medicine/Disease/Kinds/Organ/Respiration/asphyxia
aspirate /6/Linguistics/Phonetics/Consonant/Air/aspirate consonant
aspirator /7/Machine/Kinds/Fluid/Air/aspirator
assault /6/Law/Tort/Kinds/Intentional/assault
assembler /3/Computer Science/Software/Operating System/Language/assembler
assembly line /6/Economics/Microeconomics/Production/Factors/Labor/Job/Kinds/assembly line
association rule /3/Logic/Rules/association rule
asterisk /6/Linguistics/Writing/Symbol/asterisk
asteroid /5/Astronomy/Solar System/Planetoid/asteroid
asthma /4/Medicine/Disease/Kinds/Organ/Immune/Allergy/asthma
astigmatism /1/Consciousness/Sense/Vision/Problems/astigmatism
astral projection /6/Psychology/Parapsychology/Kinds/astral projection
astringent /4/Medicine/Drug/Classes/astringent
astrolabe /5/Astronomy/Instruments/astrolabe
asymptote, graph /3/Algebra/Equation/Graph/asymptote of graph
at symbol /6/Linguistics/Writing/Symbol/at symbol
atavism /4/Genetics/Phenotype/Mixtures/atavism
atheism /6/Religion/Belief/atheism
atherosclerosis /4/Medicine/Disease/Kinds/Organ/Circulation/Blockage/atherosclerosis
athlete's foot /4/Medicine/Disease/Kinds/Organism/Fungus/athlete's foot
at-large /6/Political Science/Government/Branch/Legislative/Representative/at-large
atlas, book /2/Literature/Prose/Kinds/Book/Nonfiction/atlas of maps
atlas, topology /3/Topology/atlas in topology
atom, matter /5/Physics/Matter/Atom/atom
atomic clock /7/Machine/Kinds/Instrument/Clock/atomic clock
atomic number /5/Physics/Matter/Atom/Properties/atomic number
atomic weight /5/Physics/Matter/Atom/Properties/atomic weight
atomizer /7/Machine/Kinds/Fluid/Spray/atomizer
atonal /2/Music/Classical/Styles/atonal
atrophy /4/Zoology/Organ/Muscle/atrophy
attack, hearing /1/Consciousness/Sense/Hearing/Physiology/Intensity/Rate/attack in sound
attention /6/Psychology/Cognition/Attention/attention
attention deficit disorder /4/Medicine/Disease/Kinds/Organ/Nerve/Attention/attention deficit disorder
attention span /6/Psychology/Cognition/Attention/Properties/attention span
attest /6/Law/Trial/Witness/Testimony/attest
attractor /3/Computer Science/System Analysis/States/Trajectory/Terminus/attractor in systems
audience, writing /6/Education/Writing/audience for writing
audiometer /1/Consciousness/Sense/Hearing/Physiology/Techniques/audiometer
auditory canal /1/Consciousness/Sense/Hearing/Anatomy/Ear/Outer Ear/auditory canal
auditory cortex /4/Zoology/Organ/Nerve/Brain/Cerebrum/Parietal Lobe/auditory cortex
aureole, head /2/Art/Painting/aureole
auricle /4/Zoology/Organ/Circulation/Parts/Heart/Flow/auricle
aurora, pole /5/Earth Science/Planet/Magnetism/aurora in atmosphere
auscultation /4/Medicine/Medical Examination/Parts/auscultation
autarky /6/Economics/Macroeconomics/International Trade/autarky
authority, knowledge /6/Philosophy/Epistemology/Reference Source/authority as reference
autism /4/Medicine/Disease/Kinds/Organ/Nerve/Retardation/autism
autobiography /2/Literature/Prose/Kinds/Book/Nonfiction/autobiography
autoclave /7/Machine/Kinds/Heat/autoclave
autocracy /6/Political Science/Government/Kinds/Autocracy/autocracy
autoeroticism /4/Zoology/Organ/Reproduction/Sex Methods/Masturbation/autoeroticism
autoimmune disease /4/Medicine/Disease/Kinds/Organ/Immune/autoimmune disease
automatic rifle /7/Military Affairs/Weapon/Gun/Rifle/automatic rifle
automatic transmission /7/Machine/Kinds/Transmission/automatic transmission
automation /6/Economics/Microeconomics/Production/Technology/automation
automatism /1/Consciousness/States/Exceptional States/automatism
automobile /7/Machine/Transportation/Vehicle/Automobile/automobile
autonomic nervous system /4/Zoology/Organ/Nerve/Systems/autonomic nervous system
autonomy, ethics /6/Philosophy/Ethics/Choices/autonomy
autopsy /4/Medicine/Medical Examination/Tests/autopsy
autoscopy /1/Consciousness/States/Hallucination/autoscopy
autosome /4/Genetics/Chromosome/Kinds/autosome
autumnal equinox /5/Astronomy/Solar System/Axis Tilt/autumnal equinox
avalanche /5/Earth Science/Land/Movements/avalanche
awareness /1/Consciousness/awareness
axial symmetry /3/Geometry/Transformation/Symmetry/Kinds/axial symmetry
axon /4/Zoology/Organ/Nerve/Neuron/Parts/axon of neuron
axon hillock /4/Zoology/Organ/Nerve/Neuron/Parts/axon hillock
axon transport /4/Zoology/Organ/Nerve/Neuron/Physiology/axon transport
azeotrope /5/Physics/Heat/Phase/Gas/azeotrope
azide /5/Chemistry/Organic/Chemical/Amine/azide
azimuth /3/Geometry/Solid/Sphere/Spherical Angle/azimuth angle
Outline of Knowledge Database Home Page
Description of Outline of Knowledge Database
Date Created: 2022.0223