| asclepiad | (noun) any plant of the family Asclepiadaceae | - |
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| asclepiadaceous | (adjective) of or relating to plants of the milkweed family | - |
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| asocial | (adjective) given to avoiding association with others | - |
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| (adjective) hostile to or disruptive of normal standards of social behavior | Synonyms: antisocial |
| asphyxia | (noun) a condition in which insufficient or no oxygen and carbon dioxide are exchanged on a ventilatory basis; caused by choking or drowning or electric shock or poison gas | - |
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| asphyxiate | (verb) be asphyxiated; die from lack of oxygen | Synonyms: stifle, suffocate |
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| (verb) deprive of oxygen and prevent from breathing | Synonyms: smother, suffocate |
| (verb) impair the respiration of or obstruct the air passage of | Synonyms: choke, stifle, suffocate |
| asphyxiated | (adjective) in a state of asphyxia | - |
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| asphyxiating | (adjective) tending to deprive of oxygen | - |
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| asphyxiation | (noun) killing by depriving of oxygen | Synonyms: suffocation |
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| (noun) the condition of being deprived of oxygen (as by having breathing stopped) | Synonyms: suffocation |
| asphyxiator | (noun) a manually operated device for extinguishing small fires | Synonyms: extinguisher, fire extinguisher |
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| associability | (noun) the capability of being easily associated or joined or connected in thought | Synonyms: associableness |
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| associable | (adjective) capable of being associated | - |
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| associableness | (noun) the capability of being easily associated or joined or connected in thought | Synonyms: associability |
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| associate | (adjective) having partial rights and privileges or subordinate status | - |
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| (noun) a degree granted by a two-year college on successful completion of the undergraduates course of studies | Synonyms: associate degree |
| (noun) any event that usually accompanies or is closely connected with another | - |
| (noun) a person who joins with others in some activity or endeavor | - |
| (noun) a friend who is frequently in the company of another | Synonyms: companion, comrade, familiar, fellow |
| (noun) a person with subordinate membership in a society, institution, or commercial enterprise | - |
| (verb) make a logical or causal connection | Synonyms: colligate, connect, link, link up, relate, tie in |
| (verb) bring or come into association or action | Synonyms: consociate |
| (verb) keep company with; hang out with | Synonyms: affiliate, assort, consort |
| associateship | (noun) the position of associate (as in an office or academy) | - |
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| association | (noun) the act of consorting with or joining with others | - |
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| (noun) the process of bringing ideas or events together in memory or imagination | Synonyms: connection, connexion |
| (noun) a formal organization of people or groups of people | - |
| (noun) (ecology) a group of organisms (plants and animals) that live together in a certain geographical region and constitute a community with a few dominant species | - |
| (noun) (chemistry) any process of combination (especially in solution) that depends on relatively weak chemical bonding | - |
| (noun) a relation resulting from interaction or dependence | - |
| (noun) a social or business relationship | Synonyms: affiliation, tie-up, tie |
| (noun) the state of being connected together as in memory or imagination | - |
| associational | (adjective) of or relating to associations or associationism | - |
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| associationism | (noun) (psychology) a theory that association is the basic principle of mental activity | Synonyms: association theory |
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| associative | (adjective) characterized by or causing or resulting from the process of bringing ideas or events together in memory or imagination | Synonyms: associatory |
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| associatory | (adjective) characterized by or causing or resulting from the process of bringing ideas or events together in memory or imagination | Synonyms: associative |
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| astasia | (noun) inability to stand due to muscular incoordination | - |
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| asteriated | (adjective) (of some crystals especially gemstones) exhibiting asterism | - |
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| asthenia | (noun) an abnormal loss of strength | Synonyms: astheny |
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| asthenopia | (noun) a tiredness of the eyes caused by prolonged close work by a person with an uncorrected vision problem | Synonyms: eyestrain |
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| astigmia | (noun) (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point | Synonyms: astigmatism |
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| (noun) (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people | Synonyms: astigmatism |
| astrantia | (noun) any plant of the genus Astrantia | Synonyms: masterwort |
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| astraphobia | (noun) a morbid fear of thunder and lightning | - |
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| astroglia | (noun) tissue consisting of large stellate neuroglial cells | Synonyms: macroglia |
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| asynergia | (noun) absence of coordination of organs or body parts that usually work together harmoniously | Synonyms: asynergy |
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| ataraxia | (noun) peace of mind | - |
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| ataxia | (noun) inability to coordinate voluntary muscle movements; unsteady movements and staggering gait | Synonyms: ataxy, dyssynergia, motor ataxia |
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| atonia | (noun) lack of normal muscular tension or tonus | Synonyms: amyotonia, atonicity, atony |
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| atopognosia | (noun) absence or loss of topognosia; inability to locate correctly a point of touch | Synonyms: atopognosis |
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| atresia | (noun) an abnormal condition in which a normal opening or tube in the body (as the urethra) is closed or absent | - |
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| atrial | (adjective) of or relating to a cavity or chamber in the body (especially one of the upper chambers of the heart) | - |
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| auctorial | (adjective) of or by or typical of an author | Synonyms: authorial |
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| authorial | (adjective) of or by or typical of an author | Synonyms: auctorial |
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| authoritarian | (adjective) expecting unquestioning obedience | Synonyms: dictatorial, overbearing |
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| (adjective) characteristic of an absolute ruler or absolute rule; having absolute sovereignty | Synonyms: autocratic, despotic, dictatorial, tyrannic, tyrannical |
| (noun) a person who behaves in a tyrannical manner | Synonyms: dictator |
| authoritarianism | (noun) a form of government in which the ruler is an absolute dictator (not restricted by a constitution or laws or opposition etc.) | Synonyms: absolutism, Caesarism, despotism, dictatorship, monocracy, one-man rule, shogunate, Stalinism, totalitarianism, tyranny |
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| automysophobia | (noun) a morbid fear of being dirty | - |
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| auxiliary | (adjective) functioning in a supporting capacity | Synonyms: subsidiary, supplemental, supplementary |
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| (adjective) furnishing added support | Synonyms: accessory, adjunct, adjuvant, ancillary, appurtenant |
| (noun) someone who acts as assistant | Synonyms: aide |
| avaritia | (noun) reprehensible acquisitiveness; insatiable desire for wealth (personified as one of the deadly sins) | Synonyms: avarice, covetousness, greed, rapacity |
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| avian | (adjective) pertaining to or characteristic of birds | - |
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| avianise | (verb) to modify microorganisms by repeated culture in the developing chick embryo | Synonyms: avianize |
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| avianize | (verb) to modify microorganisms by repeated culture in the developing chick embryo | Synonyms: avianise |
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| aviary | (noun) a building where birds are kept | Synonyms: bird sanctuary, volary |
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| aviate | (verb) operate an airplane | Synonyms: fly, pilot |
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| aviation | (noun) travel via aircraft | Synonyms: air, air travel |
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| (noun) the art of operating aircraft | Synonyms: airmanship |
| (noun) the aggregation of a country's military aircraft | Synonyms: air power |
| (noun) the operation of aircraft to provide transportation | - |
| aviator | (noun) someone who operates an aircraft | Synonyms: aeronaut, flier, flyer |
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| aviatress | (noun) a woman aviator | Synonyms: airwoman, aviatrix |
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| aviatrix | (noun) a woman aviator | Synonyms: airwoman, aviatress |
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| axial | (adjective) of or relating to or resembling an axis of rotation | - |
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| (adjective) relating to or attached to the axis | Synonyms: axile |
| (adjective) situated on or along or in the direction of an axis | - |
| axially | (adverb) with respect to an axis | - |
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| azotaemia | (noun) accumulation in the blood of nitrogenous waste products (urea) that are usually excreted in the urine | Synonyms: azotemia, uraemia, uremia |
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| azotemia | (noun) accumulation in the blood of nitrogenous waste products (urea) that are usually excreted in the urine | Synonyms: azotaemia, uraemia, uremia |
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| azoturia | (noun) excess of urea in the urine | - |
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| azymia | (noun) absence of an enzyme | - |
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| bacchanalia | (noun) a wild gathering involving excessive drinking and promiscuity | Synonyms: bacchanal, debauch, debauchery, drunken revelry, orgy, riot, saturnalia |
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| bacchanalian | (adjective) used of riotously drunken merrymaking | Synonyms: bacchanal, bacchic, carousing, orgiastic |
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| bacteremia | (noun) transient presence of bacteria (or other microorganisms) in the blood | Synonyms: bacteriaemia, bacteriemia |
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| bacteria | (noun) (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants | Synonyms: bacterium |
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| bacteriacide | (noun) any chemical agent that destroys bacteria | Synonyms: bactericide |
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| bacteriaemia | (noun) transient presence of bacteria (or other microorganisms) in the blood | Synonyms: bacteremia, bacteriemia |
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| bacterial | (adjective) relating to or caused by bacteria | - |
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| bacterially | (adverb) by bacteria | - |
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| bacteriemia | (noun) transient presence of bacteria (or other microorganisms) in the blood | Synonyms: bacteremia, bacteriaemia |
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| balletomania | (noun) extraordinary enthusiasm for ballets | - |
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| banian | (noun) a loose fitting jacket; originally worn in India | Synonyms: banyan |
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| (noun) East Indian tree that puts out aerial shoots that grow down into the soil forming additional trunks | Synonyms: banian tree, banyan, banyan tree, East Indian fig tree, Ficus bengalensis, Indian banyan |
| banksia | (noun) any shrub or tree of the genus Banksia having alternate leathery leaves apetalous yellow flowers often in showy heads and conelike fruit with winged seeds | - |
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| barbarian | (adjective) without civilizing influences | Synonyms: barbaric, savage, uncivilised, uncivilized, wild |
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| (noun) a member of an uncivilized people | Synonyms: savage |
| (noun) a crude uncouth ill-bred person lacking culture or refinement | Synonyms: boor, churl, Goth, peasant, tike, tyke |
| baronial | (adjective) impressive in size, manner, or appearance | Synonyms: imposing, noble, stately |
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| bartonia | (noun) annual grown especially for its fragrant golden nocturnal flowers | Synonyms: Mentzelia lindleyi |
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| basidial | (adjective) relating to or characterized by basidia | - |
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| basophilia | (noun) the tendency of cells to stain with basic dyes | - |
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| batrachian | (adjective) relating to frogs and toads | Synonyms: anuran, salientian |
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| (noun) any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species | Synonyms: anuran, frog, salientian, toad, toad frog |
| batrachomyomachia | (noun) a silly altercation | - |
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| beautician | (noun) someone who works in a beauty parlor | Synonyms: cosmetician |
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| begonia | (noun) any of numerous plants of the genus Begonia grown for their attractive glossy asymmetrical leaves and colorful flowers in usually terminal cymes or racemes | - |
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| beneficial | (adjective) promoting or enhancing well-being | Synonyms: good |
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| beneficially | (adverb) in a beneficial manner | - |
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| beneficiary | (adjective) having or arising from a benefice | - |
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| (noun) the semantic role of the intended recipient who benefits from the happening denoted by the verb in the clause | Synonyms: benefactive role |
| (noun) the recipient of funds or other benefits | Synonyms: donee |
| beneficiate | (verb) process (ores or other raw materials), as by reduction | - |
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| beneficiation | (noun) crushing and separating ore into valuable substances or waste by any of a variety of techniques | Synonyms: mineral dressing, mineral extraction, mineral processing, ore dressing, ore processing |
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| benficiate | (verb) subject to a reduction process | - |
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| benzodiazepine | (noun) any of several similar lipophilic amines used as tranquilizers or sedatives or hypnotics or muscle relaxants; chronic use can lead to dependency | - |
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| bergenia | (noun) any plant of the genus Bergenia; valued as an evergreen ground cover and for the spring blossoms | - |
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| bestial | (adjective) resembling a beast; showing lack of human sensibility | Synonyms: beastly, brutal, brute, brutish |
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| bestialise | (verb) make brutal and depraved; give animal-like qualities to | Synonyms: bestialize |
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| bestiality | (noun) sexual activity between a person and an animal | Synonyms: sodomy, zooerastia, zooerasty |
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| (noun) the stupid brutal quality of a beast | - |
| bestialize | (verb) make brutal and depraved; give animal-like qualities to | Synonyms: bestialise |
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| bestially | (adverb) in the manner of a beast | Synonyms: brutishly, in a beastly manner |
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| bestiary | (noun) a medieval book (usually illustrated) with allegorical and amusing descriptions of real and fabled animals | - |
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| bialy | (noun) flat crusty-bottomed onion roll | Synonyms: bialystoker |
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| bialystoker | (noun) flat crusty-bottomed onion roll | Synonyms: bialy |
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| biannual | (adjective) occurring or payable twice each year | Synonyms: biyearly, half-yearly, semiannual |
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| biannually | (adverb) twice a year | - |
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| bias | (adjective) slanting diagonally across the grain of a fabric | - |
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| (noun) a partiality that prevents objective consideration of an issue or situation | Synonyms: preconception, prejudice |
| (noun) a line or cut across a fabric that is not at right angles to a side of the fabric | Synonyms: diagonal |
| (verb) cause to be biased | Synonyms: predetermine |
| (verb) influence in an unfair way | - |
| biased | (adjective) favoring one person or side over another | Synonyms: colored, coloured, one-sided, slanted |
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| biaural | (adjective) relating to or having or hearing with two ears | Synonyms: binaural |
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| biauricular | (adjective) relating to the two auditory openings | - |
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| biaxal | (adjective) having two axes | Synonyms: biaxate, biaxial |
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