| abiogenesis | (noun) a hypothetical organic phenomenon by which living organisms are created from nonliving matter | Synonyms: autogenesis, autogeny, spontaneous generation |
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| abiogenetic | (adjective) originating by abiogenesis | - |
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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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| acrogenic | (adjective) pertaining to flowerless plants (ferns or mosses) in which growth occurs only at the tip of the main stem | Synonyms: acrogenous |
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| acrogenous | (adjective) pertaining to flowerless plants (ferns or mosses) in which growth occurs only at the tip of the main stem | Synonyms: acrogenic |
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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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| agamogenetic | (adjective) (of reproduction) not involving the fusion of male and female gametes in reproduction | Synonyms: agamic, agamous, apomictic, parthenogenetic |
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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 | - |
| agential | (adjective) of or relating to an agent or agency | - |
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| 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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| allergenic | (adjective) relating to or having the effect of an allergen | - |
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| allogeneic | (adjective) denoting or relating to cells or tissues from individuals belonging to the same species but genetically dissimilar (and hence immunologically incompatible) | - |
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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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| androgenetic | (adjective) of or related to androgenesis | Synonyms: androgenous |
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| androgenic | (adjective) of or related to the male hormone androgen | - |
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| androgenous | (adjective) of or related to androgenesis | Synonyms: androgenetic |
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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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| anorexigenic | (adjective) causing loss of appetite | Synonyms: anorectic |
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| anthropogenesis | (noun) the evolution or genesis of the human race | Synonyms: anthropogeny |
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| anthropogenetic | (adjective) of or relating to the study of the origins and development of human beings | Synonyms: anthropogenic |
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| anthropogenic | (adjective) of or relating to the study of the origins and development of human beings | Synonyms: anthropogenetic |
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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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| antigenic | (adjective) of or relating to antigens | - |
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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 | (adjective) of lustrous grey; covered with or tinged with the color of silver | Synonyms: silver, silverish, silvery |
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| (noun) a metal tincture used in heraldry to give a silvery appearance | - |
| argentic | (adjective) relating to compounds in which silver is bivalent | - |
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| argentiferous | (adjective) containing or yielding silver | - |
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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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| argentous | (adjective) relating to compounds in which silver is univalent | - |
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| assurgent | (adjective) growing or extending upward | - |
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| (adjective) rising from the sea | - |
| 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 | (adjective) tending to draw together or constrict soft organic tissue | - |
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| (adjective) sour or bitter in taste | Synonyms: acerb, acerbic |
| (noun) a drug that causes contraction of body tissues and canals | Synonyms: astringent drug, styptic |
| 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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| autogenetic | (adjective) of or relating to autogenesis | - |
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| autogenic | (adjective) originating within the body | Synonyms: autogenous |
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| autogenics | (noun) training patients in self-induced relaxation | Synonyms: autogenic therapy, autogenic training |
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| autogenous | (adjective) originating within the body | Synonyms: autogenic |
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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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| bigeneric | (adjective) resulting from a cross between species of different genera | - |
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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 |
| biogenetic | (adjective) of or relating to the production of living organisms from other living organisms | - |
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| biogenic | (adjective) produced by living organisms or biological processes | - |
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| (adjective) essential for maintaining the fundamental life processes | - |
| biogenous | (adjective) producing or produced by living things | - |
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| 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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| birefringent | (adjective) relating to or characterized by 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 | - |
| blastogenetic | (adjective) of or relating to blastogenesis | - |
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| cacogenesis | (noun) inability to produce hybrids that are both viable and fertile | - |
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| cacogenic | (adjective) pertaining to or causing degeneration in the offspring produced | Synonyms: dysgenic |
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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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| carcinogenic | (adjective) causing or tending to cause 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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| cenogenetic | (adjective) of or relating to cenogenesis | - |
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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 | - |
| cogent | (adjective) powerfully persuasive | Synonyms: telling, weighty |
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| 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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| collagenic | (adjective) relating to or consisting of collagen | Synonyms: collagenous |
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| collagenous | (adjective) relating to or consisting of collagen | Synonyms: collagenic |
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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 | (adjective) belonging to the same genus | Synonyms: congenerical, congenerous |
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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, congener, relative |
| congenerical | (adjective) belonging to the same genus | Synonyms: congeneric, congenerous |
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| congenerous | (adjective) belonging to the same genus | Synonyms: congeneric, congenerical |
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| congenial | (adjective) suitable to your needs | - |
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| (adjective) (used of plants) capable of cross-fertilization or of being grafted | - |
| congeniality | (noun) a congenial disposition | - |
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| (noun) compatibility between persons | Synonyms: congenialness |
| congenially | (adverb) in a congenial manner | - |
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| congenialness | (noun) compatibility between persons | Synonyms: congeniality |
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| congenital | (adjective) present at birth but not necessarily hereditary; acquired during fetal development | Synonyms: inborn, innate |
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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 | (adjective) being determined by conditions or circumstances that follow | Synonyms: contingent on, contingent upon, dependant on, dependant upon, dependent on, dependent upon, depending on |
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| (adjective) possible but not certain to occur | - |
| (adjective) uncertain because of uncontrollable circumstances | - |
| (noun) a temporary military unit | Synonyms: detail |
| (noun) a gathering of persons representative of some larger group | - |