| antipsychotic | (noun) tranquilizer used to treat psychotic conditions when a calming effect is desired | Synonyms: antipsychotic agent, antipsychotic drug, major tranquilizer, major tranquilliser, major tranquillizer, neuroleptic, neuroleptic agent, neuroleptic drug |
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| antipyretic | (adjective) preventing or alleviating fever | - |
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| (noun) any medicine that lowers body temperature to prevent or alleviate fever | Synonyms: febrifuge |
| antisemitic | (adjective) relating to or characterized by anti-Semitism; hating Jews | Synonyms: anti-semitic |
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| antiseptic | (adjective) thoroughly clean and free of or destructive to disease-causing organisms | - |
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| (adjective) devoid of objectionable language | - |
| (adjective) clean and honest | - |
| (adjective) freeing from error or corruption | - |
| (noun) a substance that destroys micro-organisms that carry disease without harming body tissues | - |
| antisyphilitic | (noun) a drug (or other chemical agent) that is effective against syphilis | - |
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| antithetic | (adjective) sharply contrasted in character or purpose | Synonyms: antithetical |
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| anuretic | (adjective) of or relating to an inability to urinate | Synonyms: anuric |
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| anxiolytic | (adjective) anxiety relieving | - |
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| (noun) a tranquilizer used to relieve anxiety and reduce tension and irritability | Synonyms: antianxiety drug, anxiolytic drug, minor tranquilizer, minor tranquilliser, minor tranquillizer |
| aoristic | (adjective) of or relating to the aorist tense | - |
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| aortic | (adjective) of or relating to the aorta | Synonyms: aortal |
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| apathetic | (adjective) showing little or no emotion or animation | - |
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| (adjective) marked by a lack of interest | Synonyms: indifferent |
| aphaeretic | (adjective) relating to or formed by or consisting of aphaeresis | Synonyms: apheretic |
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| aphanitic | (adjective) of or relating to aphanite | - |
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| apheretic | (adjective) relating to or formed by or consisting of aphaeresis | Synonyms: aphaeretic |
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| aphetic | (adjective) produced by aphesis | - |
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| aphoristic | (adjective) containing aphorisms or maxims | Synonyms: axiomatic |
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| (adjective) terse and witty and like a maxim | Synonyms: apothegmatic, epigrammatic |
| aphotic | (adjective) lacking light; especially not reached by sunlight | - |
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| aplanatic | (adjective) free from or corrected for spherical aberration | - |
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| aplitic | (adjective) of or related to aplite | - |
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| apocalyptic | (adjective) of or relating to an apocalypse | - |
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| (adjective) prophetic of devastation or ultimate doom | Synonyms: apocalyptical, revelatory |
| apochromatic | (adjective) corrected for both chromatic and spherical aberration | - |
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| apodeictic | (adjective) of a proposition; necessarily true or logically certain | Synonyms: apodictic |
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| apodictic | (adjective) of a proposition; necessarily true or logically certain | Synonyms: apodeictic |
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| apogametic | (adjective) of or relating to the development of an embryo in the absence of fertilization | Synonyms: apogamic, apogamous |
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| apologetic | (adjective) offering or expressing apology | Synonyms: excusatory |
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| apomictic | (adjective) of or relating to a plant that reproduces by apomixis | Synonyms: apomictical |
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| (adjective) (of reproduction) not involving the fusion of male and female gametes in reproduction | Synonyms: agamic, agamogenetic, agamous, parthenogenetic |
| aponeurotic | (adjective) of or relating to an aponeurosis | - |
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| apopemptic | (adjective) addressed to one who is departing | - |
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| apophatic | (adjective) of or relating to the belief that God can be known to humans only in terms of what He is not (such as `God is unknowable') | - |
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| apoplectic | (adjective) pertaining to or characteristic of apoplexy | - |
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| aposiopetic | (adjective) relating to or characteristic of aposiopesis | - |
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| apothegmatic | (adjective) given to or characterized by terse apothegms | Synonyms: apothegmatical |
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| (adjective) terse and witty and like a maxim | Synonyms: aphoristic, epigrammatic |
| apractic | (adjective) having uncoordinated muscular movements, symptomatic of a CNS disorder | Synonyms: apraxic |
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| aquatic | (adjective) operating or living or growing in water | - |
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| (adjective) relating to or consisting of or being in water | - |
| (noun) a plant that lives in or on water | - |
| archaistic | (adjective) imitative of an archaic style or manner | - |
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| arctic | (adjective) extremely cold | Synonyms: frigid, gelid, glacial, icy, polar |
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| (noun) a waterproof overshoe that protects shoes from water or snow | Synonyms: galosh, golosh, gumshoe, rubber |
| argentic | (adjective) relating to compounds in which silver is bivalent | - |
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| aristocratic | (adjective) belonging to or characteristic of the nobility or aristocracy | Synonyms: aristocratical, blue-blooded, blue, gentle, patrician |
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| arithmetic | (adjective) relating to or involving arithmetic | Synonyms: arithmetical |
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| (noun) the branch of pure mathematics dealing with the theory of numerical calculations | - |
| aromatic | (adjective) (chemistry) of or relating to or containing one or more benzene rings | - |
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| (adjective) having a strong pleasant odor | Synonyms: redolent |
| arteriosclerotic | (adjective) affected by arteriosclerosis | - |
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| arthritic | (adjective) of or pertaining to arthritis | Synonyms: creaky, rheumatic, rheumatoid, rheumy |
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| (noun) a person afflicted with arthritis | - |
| artistic | (adjective) relating to or characteristic of art or artists | - |
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| (adjective) satisfying aesthetic standards and sensibilities | - |
| (adjective) aesthetically pleasing | Synonyms: aesthetic, esthetic |
| ascetic | (adjective) pertaining to or characteristic of an ascetic or the practice of rigorous self-discipline | Synonyms: ascetical |
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| (adjective) practicing great self-denial | Synonyms: ascetical, austere, spartan |
| (noun) someone who practices self denial as a spiritual discipline | Synonyms: abstainer |
| ascitic | (adjective) of or relating to or resulting from an abnormal accumulation of protein and electrolyte rich fluid in the peritoneal cavity | - |
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| aseptic | (adjective) free of or using methods to keep free of pathological microorganisms | Synonyms: sterile |
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| asphaltic | (adjective) containing asphalt | - |
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| astatic | (adjective) not static or stable | - |
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| asthmatic | (adjective) relating to breathing with a whistling sound | Synonyms: wheezing, wheezy |
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| (noun) a person suffering from asthma | - |
| astigmatic | (adjective) of or relating to a defect in the eye or in a lens caused by a deviation from spherical curvature which prevents light rays from meeting at a common focus and so results in distorted images | - |
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| astrocytic | (adjective) of or relating to or containing large star-shaped cells in the neuroglia | - |
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| astronautic | (adjective) of or belonging to astronauts or the science of astronautics | Synonyms: astronautical |
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| asymptomatic | (adjective) having no symptoms of illness or disease | Synonyms: symptomless |
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| asymptotic | (adjective) relating to or of the nature of an asymptote | - |
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| asyndetic | (adjective) lacking conjunctions | - |
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| atactic | (adjective) lacking motor coordination; marked or caused by ataxia | Synonyms: ataxic |
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| ataractic | (adjective) tending to soothe or tranquilize | Synonyms: ataraxic, sedative, tranquilising, tranquilizing, tranquillising, tranquillizing |
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| (noun) a drug used to reduce stress or tension without reducing mental clarity | Synonyms: antianxiety agent, ataractic agent, ataractic drug, tranquilizer, tranquilliser, tranquillizer |
| atavistic | (adjective) characteristic of an atavist | Synonyms: throwback |
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| ateleiotic | (adjective) of or relating to ateleiosis | - |
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| atheistic | (adjective) related to or characterized by or given to atheism | Synonyms: atheist, atheistical |
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| (adjective) rejecting any belief in gods | Synonyms: atheistical, unbelieving |
| atheromatic | (adjective) of or relating to or resembling atheroma | Synonyms: atheromatous |
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| atherosclerotic | (adjective) of or relating to atherosclerosis | - |
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| athletic | (adjective) relating to or befitting athletics or athletes | - |
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| (adjective) vigorously active | Synonyms: acrobatic, gymnastic |
| (adjective) having a sturdy and well proportioned body | - |
| atomistic | (adjective) divided into separate and often disparate elements | Synonyms: atomistical |
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| atonalistic | (adjective) of or relating to atonalism | - |
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| attic | (noun) floor consisting of open space at the top of a house just below roof; often used for storage | Synonyms: garret, loft |
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| (noun) (architecture) a low wall at the top of the entablature; hides the roof | - |
| (noun) informal terms for a human head | Synonyms: bean, bonce, dome, noggin, noodle |
| augitic | (adjective) of or relating to or containing the mineral augite | - |
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| austenitic | (adjective) composed of austenite | - |
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| authentic | (adjective) not counterfeit or copied | Synonyms: bona fide, unquestionable, veritable |
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| (adjective) conforming to fact and therefore worthy of belief | Synonyms: reliable |
| autistic | (adjective) characteristic of or affected with autism | - |
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| autocatalytic | (adjective) relating to or proceeding by autocatalysis | - |
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| autocratic | (adjective) offensively self-assured or given to exercising usually unwarranted power | Synonyms: bossy, dominating, high-and-mighty, magisterial, peremptory |
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| (adjective) characteristic of an absolute ruler or absolute rule; having absolute sovereignty | Synonyms: authoritarian, despotic, dictatorial, tyrannic, tyrannical |
| autodidactic | (adjective) relating to or having the characteristics of an autodidact | - |
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| autoerotic | (adjective) sexually satisfying yourself (as by masturbation) | - |
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| autogenetic | (adjective) of or relating to autogenesis | - |
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| autolytic | (adjective) of or relating to self-digestion | - |
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| automatic | (adjective) operating with minimal human intervention; independent of external control | - |
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| (adjective) without volition or conscious control | Synonyms: reflex, reflexive |
| (adjective) resembling the unthinking functioning of a machine | Synonyms: automatonlike, machinelike, robotic, robotlike |
| (noun) self-loading rifle capable of automatic fire | Synonyms: automatic rifle, machine rifle |
| (noun) a pistol that will keep firing until the ammunition is gone or the trigger is released | Synonyms: automatic pistol |
| autophytic | (adjective) of or relating to organisms (as green plants) that can make complex organic nutritive compounds from simple inorganic sources by photosynthesis | Synonyms: autotrophic |
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| autoplastic | (adjective) of or relating to or involved in autoplasty | - |
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| autosemantic | (adjective) of a word or phrase meaningful in isolation, independent of context | - |
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| auxetic | (adjective) of or relating to growth by auxesis | - |
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| avifaunistic | (adjective) of or relating to birds of a particular region or period | Synonyms: avifaunal |
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| avitaminotic | (adjective) of or relating to or characteristic of avitaminosis | - |
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| axiomatic | (adjective) of or relating to or derived from axioms | Synonyms: axiomatical, postulational |
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| (adjective) containing aphorisms or maxims | Synonyms: aphoristic |
| (adjective) evident without proof or argument | Synonyms: self-evident, taken for granted |
| azotic | (adjective) of or containing nitrogen | Synonyms: nitric, nitrous |
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| bacchantic | (adjective) of or relating to or resembling a bacchanalian reveler | - |
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| bacteriolytic | (adjective) of or relating to or causing bacteriolysis | - |
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| bacteriostatic | (adjective) of or relating to or causing bacteriostasis | - |
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| balletic | (adjective) characteristic of or resembling or suitable for ballet | - |
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| ballistic | (adjective) relating to or characteristic of the motion of objects moving under their own momentum and the force of gravity | - |
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| barytic | (adjective) of or relating to or containing baryta | - |
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| basaltic | (adjective) of or relating to or containing basalt | - |
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| bathetic | (adjective) effusively or insincerely emotional | Synonyms: drippy, hokey, kitschy, maudlin, mawkish, mushy, sappy, schmaltzy, schmalzy, sentimental, slushy, soppy, soupy |
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| batholitic | (adjective) of or relating to a batholith | Synonyms: batholithic |
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| bauxitic | (adjective) resembling or containing bauxite | - |
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| behavioristic | (adjective) of or relating to behaviorism | Synonyms: behaviorist, behaviourist, behaviouristic |
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| behaviouristic | (adjective) of or relating to behaviorism | Synonyms: behaviorist, behavioristic, behaviourist |
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| belemnitic | (adjective) of or relating to belemnites | - |
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| belletristic | (adjective) written and regarded for aesthetic value rather than content | - |
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| bentonitic | (adjective) of or relating to or containing bentonite | - |
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