| abiogenesis | (noun) a hypothetical organic phenomenon by which living organisms are created from nonliving matter | Synonyms: autogenesis, autogeny, spontaneous generation |
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| abiogenist | (noun) a believer in abiogenesis | - |
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| acrogen | (noun) any flowerless plant such as a fern (pteridophyte) or moss (bryophyte) in which growth occurs only at the tip of the main stem | - |
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| aerogenerator | (noun) generator that extracts usable energy from winds | Synonyms: wind generator, windmill |
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| afibrinogenemia | (noun) the absence of fibrinogen in the plasma leading to prolonged bleeding | - |
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| agamogenesis | (noun) reproduction without the fusion of gametes | Synonyms: asexual reproduction |
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| agency | (noun) to have the ability to produce a particular effect or achieve an end | Synonyms: means, way |
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| (noun) an administrative unit of government | Synonyms: authority, bureau, federal agency, government agency, office |
| (noun) a business or organization that provides a particular service, especially the mediation of transactions between two parties | - |
| (noun) the state of serving as an official and authorized delegate or agent | Synonyms: delegacy, representation |
| (noun) the state of being in action or exerting power | - |
| agenda | (noun) a temporally organized plan for matters to be attended to | Synonyms: docket, schedule |
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| (noun) a list of matters to be taken up (as at a meeting) | Synonyms: agendum, order of business |
| agendum | (noun) a list of matters to be taken up (as at a meeting) | Synonyms: agenda, order of business |
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| agenesia | (noun) imperfect development; nondevelopment of a part | Synonyms: agenesis |
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| agenesis | (noun) imperfect development; nondevelopment of a part | Synonyms: agenesia |
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| agent | (noun) the semantic role of the animate entity that instigates or causes the happening denoted by the verb in the clause | Synonyms: agentive role |
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| (noun) an active and efficient cause; capable of producing a certain effect | - |
| (noun) a businessman who buys or sells for another in exchange for a commission | Synonyms: broker, factor |
| (noun) a representative who acts on behalf of other persons or organizations | - |
| (noun) any agent or representative of a federal agency or bureau | Synonyms: federal agent |
| (noun) a substance that exerts some force or effect | - |
| agglutinogen | (noun) any substance that acts as an antigen to cause agglutinin production | - |
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| allergen | (noun) any substance that can cause an allergy | - |
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| amelogenesis | (noun) the developmental process of forming tooth enamel | - |
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| androgen | (noun) male sex hormone that is produced in the testes and responsible for typical male sexual characteristics | Synonyms: androgenic hormone |
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| androgenesis | (noun) male parthenogenesis in which the embryo contains only paternal chromosomes due to the failure of the egg nucleus to participate in fertilization | Synonyms: androgeny |
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| androgeny | (noun) male parthenogenesis in which the embryo contains only paternal chromosomes due to the failure of the egg nucleus to participate in fertilization | Synonyms: androgenesis |
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| angiogenesis | (noun) the formation of new blood vessels | - |
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| anthropogenesis | (noun) the evolution or genesis of the human race | Synonyms: anthropogeny |
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| anthropogeny | (noun) the evolution or genesis of the human race | Synonyms: anthropogenesis |
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| antigen | (noun) any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies) | - |
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| arccotangent | (noun) the inverse function of the cotangent; the angle that has a cotangent equal to a given number | Synonyms: arc cotangent, inverse cotangent |
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| arctangent | (noun) the inverse function of the tangent; the angle that has a tangent equal to a given number | Synonyms: arc tangent, arctan, inverse tangent |
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| argent | (noun) a metal tincture used in heraldry to give a silvery appearance | - |
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| argentine | (noun) any of various small silver-scaled salmon-like marine fishes | - |
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| argentinosaur | (noun) huge herbivorous dinosaur of Cretaceous found in Argentina | - |
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| argentite | (noun) a valuable silver ore consisting of silver sulfide (Ag2S) | - |
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| astringence | (noun) a sharp astringent taste; the taste experience when a substance causes the mouth to pucker | Synonyms: astringency |
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| astringency | (noun) the ability to contract or draw together soft body tissues to check blood flow or restrict secretion of fluids | Synonyms: stypsis |
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| (noun) a sharp astringent taste; the taste experience when a substance causes the mouth to pucker | Synonyms: astringence |
| astringent | (noun) a drug that causes contraction of body tissues and canals | Synonyms: astringent drug, styptic |
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| atherogenesis | (noun) the formation of atheromas on the walls of the arteries as in atherosclerosis | - |
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| augend | (noun) a number to which another number (the addend) is added | - |
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| autogenesis | (noun) a hypothetical organic phenomenon by which living organisms are created from nonliving matter | Synonyms: abiogenesis, autogeny, spontaneous generation |
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| autogenics | (noun) training patients in self-induced relaxation | Synonyms: autogenic therapy, autogenic training |
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| autogeny | (noun) a hypothetical organic phenomenon by which living organisms are created from nonliving matter | Synonyms: abiogenesis, autogenesis, spontaneous generation |
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| averageness | (noun) ordinariness as a consequence of being average and not outstanding | Synonyms: mediocrity |
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| (noun) the state of being that is average; indicates normality but with connotations of mediocrity | - |
| bergenia | (noun) any plant of the genus Bergenia; valued as an evergreen ground cover and for the spring blossoms | - |
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| biogenesis | (noun) the production of living organisms from other living organisms | Synonyms: biogeny |
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| (noun) production of a chemical compound by a living organism | Synonyms: biosynthesis |
| biogeny | (noun) the production of living organisms from other living organisms | Synonyms: biogenesis |
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| birefringence | (noun) splitting a ray into two parallel rays polarized perpendicularly | Synonyms: double refraction |
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| blastogenesis | (noun) theory that inherited characteristics are transmitted by germ plasm | - |
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| (noun) asexual reproduction by budding | - |
| cacogenesis | (noun) inability to produce hybrids that are both viable and fertile | - |
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| cacogenics | (noun) the study of the operation of factors causing degeneration in the type of offspring produced | Synonyms: dysgenics |
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| caenogenesis | (noun) introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (such as the addition of the placenta in mammalian evolution) | Synonyms: cainogenesis, cenogenesis, kainogenesis, kenogenesis |
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| cainogenesis | (noun) introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (such as the addition of the placenta in mammalian evolution) | Synonyms: caenogenesis, cenogenesis, kainogenesis, kenogenesis |
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| carcinogen | (noun) any substance that produces cancer | - |
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| cenogenesis | (noun) introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (such as the addition of the placenta in mammalian evolution) | Synonyms: caenogenesis, cainogenesis, kainogenesis, kenogenesis |
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| chromogen | (noun) a compound that can be converted to a pigment | - |
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| cogency | (noun) the quality of being valid and rigorous | Synonyms: rigor, rigour, validity |
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| (noun) persuasive relevance | - |
| collagen | (noun) a fibrous scleroprotein in bone and cartilage and tendon and other connective tissue; yields gelatin on boiling | - |
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| collagenase | (noun) any enzyme that catalyzes the hydrolysis of collagen and gelatin | - |
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| comedogen | (noun) A substance that tends to produce acne, such as by clogging pores on the skin. | Synonyms: comedogenic, comedogenic substance |
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| comedogenic | (noun) A substance that tends to produce acne, such as by clogging pores on the skin. | Synonyms: comedogen, comedogenic substance |
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| congenator | (noun) an animal or plant that bears a relationship to another (as related by common descent or by membership in the same genus) | Synonyms: congener, congeneric, relative |
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| congener | (noun) a whole (a thing or person) of the same kind or category as another | - |
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| (noun) an animal or plant that bears a relationship to another (as related by common descent or by membership in the same genus) | Synonyms: congenator, congeneric, relative |
| (noun) a minor chemical constituent that gives a wine or liquor its distinctive character | - |
| congeneric | (noun) an animal or plant that bears a relationship to another (as related by common descent or by membership in the same genus) | Synonyms: congenator, congener, relative |
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| congeniality | (noun) a congenial disposition | - |
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| (noun) compatibility between persons | Synonyms: congenialness |
| congenialness | (noun) compatibility between persons | Synonyms: congeniality |
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| contingence | (noun) a possible event or occurrence or result | Synonyms: contingency, eventuality |
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| contingency | (noun) a possible event or occurrence or result | Synonyms: contingence, eventuality |
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| (noun) the state of being contingent on something | - |
| contingent | (noun) a temporary military unit | Synonyms: detail |
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| (noun) a gathering of persons representative of some larger group | - |
| convergence | (noun) the act of converging (coming closer) | Synonyms: convergency, converging |
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| (noun) the approach of an infinite series to a finite limit | Synonyms: convergency |
| (noun) a representation of common ground between theories or phenomena | Synonyms: intersection, overlap |
| (noun) the occurrence of two or more things coming together | - |
| convergency | (noun) the act of converging (coming closer) | Synonyms: convergence, converging |
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| (noun) the approach of an infinite series to a finite limit | Synonyms: convergence |
| corrigenda | (noun) a list of printing errors in a book along with their corrections | - |
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| corrigendum | (noun) a printer's error; to be corrected | - |
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| cosmogeny | (noun) the branch of astrophysics that studies the origin and evolution and structure of the universe | Synonyms: cosmogony, cosmology |
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| cotangent | (noun) ratio of the adjacent to the opposite side of a right-angled triangle | Synonyms: cotan |
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| counterinsurgency | (noun) actions taken by a government to defeat insurgency | Synonyms: pacification |
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| counterintelligence | (noun) intelligence activities concerned with identifying and counteracting the threat to security posed by hostile intelligence organizations or by individuals engaged in espionage or sabotage or subversion or terrorism | - |
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| cryogen | (noun) a liquid that boils at below -160 C and is used as a refrigerant | - |
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| cryogenics | (noun) the branch of physics that studies the phenomena that occur at very low temperatures | Synonyms: cryogeny |
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| cryogeny | (noun) the branch of physics that studies the phenomena that occur at very low temperatures | Synonyms: cryogenics |
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| crystallogen | (noun) any chemical element that belongs to the carbon group. | Synonyms: carbon group element, Group 14 element, tetragen, tetrel |
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| cyanogen | (noun) a colorless toxic gas with a pungent almond odor; has been used in chemical warfare | - |
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| cyclooxygenase | (noun) either of two related enzymes that control the production of prostaglandins and are blocked by aspirin | Synonyms: Cox |
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| cytogenesis | (noun) the origin and development and variation of cells | Synonyms: cytogeny |
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| cytogeneticist | (noun) a geneticist who specializes in the cellular components associated with heredity | - |
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| cytogenetics | (noun) the branch of biology that studies the cellular aspects of heredity (especially the chromosomes) | - |
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| cytogeny | (noun) the origin and development and variation of cells | Synonyms: cytogenesis |
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| degeneracy | (noun) moral perversion; impairment of virtue and moral principles | Synonyms: corruption, depravation, depravity, putrefaction |
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| (noun) the state of being degenerate in mental or moral qualities | Synonyms: decadence, decadency, degeneration |
| degenerate | (noun) a person whose behavior deviates from what is acceptable especially in sexual behavior | Synonyms: deviant, deviate, perv, perve, pervert |
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| degeneration | (noun) passing from a more complex to a simpler biological form | Synonyms: retrogression |
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| (noun) the process of declining from a higher to a lower level of effective power or vitality or essential quality | Synonyms: devolution |
| (noun) the state of being degenerate in mental or moral qualities | Synonyms: decadence, decadency, degeneracy |
| detergence | (noun) detergent quality; the quality of having cleansing power | Synonyms: detergency |
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| detergency | (noun) detergent quality; the quality of having cleansing power | Synonyms: detergence |
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| detergent | (noun) a cleansing agent that differs from soap but can also emulsify oils and hold dirt in suspension | - |
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| (noun) a surface-active chemical widely used in industry and laundering | - |
| digenesis | (noun) alternation of sexual and asexual generations | Synonyms: metagenesis |
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| diligence | (noun) a diligent effort | Synonyms: application |
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| (noun) persevering determination to perform a task | Synonyms: industriousness, industry |
| (noun) conscientiousness in paying proper attention to a task; giving the degree of care required in a given situation | - |
| disingenuousness | (noun) the quality of being disingenuous and lacking candor | - |
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| divergence | (noun) the act of moving away in different direction from a common point | Synonyms: divergency |
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| (noun) a difference between conflicting facts or claims or opinions | Synonyms: disagreement, discrepancy, variance |
| (noun) an infinite series that has no limit | Synonyms: divergency |
| (noun) a variation that deviates from the standard or norm | Synonyms: departure, deviation, difference |
| divergency | (noun) the act of moving away in different direction from a common point | Synonyms: divergence |
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| (noun) an infinite series that has no limit | Synonyms: divergence |
| divulgence | (noun) the act of disclosing something that was secret or private | Synonyms: divulgement |
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| dysgenesis | (noun) infertility between hybrids | - |
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| dysgenics | (noun) the study of the operation of factors causing degeneration in the type of offspring produced | Synonyms: cacogenics |
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| effulgence | (noun) the quality of being bright and sending out rays of light | Synonyms: radiance, radiancy, refulgence, refulgency, shine |
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| eigenvalue | (noun) (mathematics) any number such that a given square matrix minus that number times the identity matrix has a zero determinant | Synonyms: characteristic root of a square matrix, eigenvalue of a matrix, eigenvalue of a square matrix |
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| emergence | (noun) the act of coming (or going) out; becoming apparent | Synonyms: egress, egression |
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| (noun) the act of emerging | Synonyms: emersion |
| (noun) the becoming visible | Synonyms: egress, issue |
| (noun) the gradual beginning or coming forth | Synonyms: growth, outgrowth |
| emergency | (noun) a brake operated by hand; usually operates by mechanical linkage | Synonyms: emergency brake, hand brake, parking brake |
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| (noun) a sudden unforeseen crisis (usually involving danger) that requires immediate action | Synonyms: exigency, pinch |
| (noun) a state in which martial law applies | - |
| endogen | (noun) a monocotyledonous flowering plant; the stem grows by deposits on its inside | Synonyms: liliopsid, monocot, monocotyledon |
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| endogeny | (noun) a geological phenomenon below the surface of the earth | - |
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