antihero | (noun) a protagonist who lacks the characteristics that would make him a hero (or her a heroine) | - |
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antihistamine | (noun) a medicine used to treat allergies and hypersensitive reactions and colds; works by counteracting the effects of histamine on a receptor site | - |
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antihypertensive | (noun) a drug that reduces high blood pressure | Synonyms: antihypertensive drug |
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antiknock | (noun) any of various compounds that are added to gasoline to reduce engine knocking | - |
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antilepton | (noun) the antiparticle of a lepton | - |
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antilog | (noun) the number of which a given number is the logarithm | Synonyms: antilogarithm |
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antilogarithm | (noun) the number of which a given number is the logarithm | Synonyms: antilog |
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antilogism | (noun) an inconsistent triad of propositions in logic of which two are premises of a valid syllogism while the third is the contradictory of its conclusion. | - |
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antimacassar | (noun) a piece of ornamented cloth that protects the back of a chair from hair oils | - |
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antimalarial | (noun) a medicinal drug used to prevent or treat malaria | Synonyms: antimalarial drug |
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antimatter | (noun) matter consisting of elementary particles that are the antiparticles of those making up normal substances | - |
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antimeson | (noun) the antiparticle of a meson | - |
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antimetabolite | (noun) an antineoplastic drug that inhibits the utilization of a metabolite | - |
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antimetathesis | (noun) A rhetorical figure resulting from a reverted arrangement in the last clause of a sentence of the two principal words of the clause preceding; inversion of the members of an antithesis: as, "A poem is a speaking picture; a picture a mute poem". | - |
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antimicrobial | (noun) an agent (as heat or radiation or a chemical) that destroys microorganisms that might carry disease | Synonyms: antimicrobic, disinfectant, germicide |
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antimicrobic | (noun) an agent (as heat or radiation or a chemical) that destroys microorganisms that might carry disease | Synonyms: antimicrobial, disinfectant, germicide |
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antimony | (noun) a metallic element having four allotropic forms; used in a wide variety of alloys; found in stibnite | Synonyms: atomic number 51, Sb |
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antimuon | (noun) the antiparticle of a muon; decays to positron and neutrino and antineutrino | Synonyms: positive muon |
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antimycin | (noun) a crystalline antibiotic active against various fungi | - |
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antimycotic | (noun) any agent that destroys or prevents the growth of fungi | Synonyms: antifungal, antifungal agent, antimycotic agent, fungicide |
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antineoplastic | (noun) any of several drugs that control or kill neoplastic cells; used in chemotherapy to kill cancer cells; all have unpleasant side effects that may include nausea and vomiting and hair loss and suppression of bone marrow function | Synonyms: antineoplastic drug, cancer drug |
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antineutrino | (noun) the antiparticle of a neutrino | - |
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antineutron | (noun) the antiparticle of a neutron | - |
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antinode | (noun) (physics) the point of maximum displacement in a periodic system | - |
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antinomasia | (noun) substitution of a title for a name | - |
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antinomian | (noun) a follower of the doctrine of antinomianism | - |
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antinomianism | (noun) the theological doctrine that by faith and God's grace a Christian is freed from all laws (including the moral standards of the culture) | - |
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antinomy | (noun) a contradiction between two statements that seem equally reasonable | - |
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antioxidant | (noun) substance that inhibits oxidation or inhibits reactions promoted by oxygen or peroxides | - |
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antiparticle | (noun) a particle that has the same mass as another particle but has opposite values for its other properties; interaction of a particle and its antiparticle results in annihilation and the production of radiant energy | - |
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antipasto | (noun) a course of appetizers in an Italian meal | - |
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antipathy | (noun) the object of a feeling of intense aversion; something to be avoided | - |
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(noun) a feeling of intense dislike | Synonyms: aversion, distaste |
antiperspirant | (noun) an astringent substance applied to the skin to reduce perspiration | - |
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antiphon | (noun) a verse or song to be chanted or sung in response | Synonyms: antiphony |
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antiphonal | (noun) bound collection of antiphons | Synonyms: antiphonary |
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antiphonary | (noun) bound collection of antiphons | Synonyms: antiphonal |
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antiphony | (noun) alternate (responsive) singing by a choir in two parts | - |
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(noun) a verse or song to be chanted or sung in response | Synonyms: antiphon |
antiphrasis | (noun) the use of a word in a sense opposite to its normal sense (especially in irony) | - |
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antipodal | (noun) the relation of opposition along a diameter | Synonyms: antipodal opposition, diametrical opposition |
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antipode | (noun) direct opposite | - |
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antipodes | (noun) any two places or regions on diametrically opposite sides of the Earth | - |
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antipope | (noun) someone who is elected pope in opposition to another person who is held to be canonically elected | - |
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antiproton | (noun) an unstable negatively charged proton; the antiparticle of a proton | - |
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antiprotozoal | (noun) a medicinal drug used to fight diseases (like malaria) that are caused by protozoa | Synonyms: antiprotozoal drug |
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antipruritic | (noun) a substance that relieves or prevents itching | - |
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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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antipyresis | (noun) medication with antipyretics to treat a fever | - |
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antipyretic | (noun) any medicine that lowers body temperature to prevent or alleviate fever | Synonyms: febrifuge |
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antiquarian | (noun) an expert or collector of antiquities | Synonyms: antiquary, archaist |
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antiquark | (noun) the antiparticle of a quark | - |
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antiquary | (noun) an expert or collector of antiquities | Synonyms: antiquarian, archaist |
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antiquatedness | (noun) The state or quality of being outmoded or discredited by reason of age, of being out of style or fashion. | - |
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antique | (noun) any piece of furniture or decorative object or the like produced in a former period and valuable because of its beauty or rarity | - |
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(noun) an elderly man | Synonyms: gaffer, old-timer, old geezer, oldtimer |
antiqueness | (noun) the quality or state of being in the style or fashion of former times. | - |
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antiquity | (noun) an artifact surviving from the past | - |
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(noun) extreme oldness | Synonyms: ancientness |
(noun) the historic period preceding the Middle Ages in Europe | - |
antiredeposition | (noun) the process of preventing redeposition | - |
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antireligiousness | (noun) The state or condition of being opposed to religion. | - |
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antisemitism | (noun) the intense dislike for and prejudice against Jewish people | Synonyms: anti-Semitism |
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antisepsis | (noun) the process of inhibiting the growth and multiplication of microorganisms | Synonyms: asepsis |
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(noun) (of non-living objects) the state of being free of pathogenic organisms | Synonyms: asepsis, sterileness, sterility |
antiseptic | (noun) a substance that destroys micro-organisms that carry disease without harming body tissues | - |
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antiserum | (noun) blood serum containing antibodies against specific antigens; provides immunity to a disease | - |
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antispasmodic | (noun) a drug used to relieve or prevent spasms (especially of the smooth muscles) | Synonyms: antispasmodic agent, spasmolytic |
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antistrophe | (noun) the section of a choral ode answering a previous strophe in classical Greek drama; the second of two metrically corresponding sections in a poem | - |
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antisyphilitic | (noun) a drug (or other chemical agent) that is effective against syphilis | - |
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antitauon | (noun) an antilepton of very great mass | Synonyms: tau-plus particle |
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antithesis | (noun) the juxtaposition of contrasting words or ideas to give a feeling of balance | - |
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(noun) exact opposite | - |
antitoxin | (noun) an antibody that can neutralize a specific toxin | - |
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antitrade | (noun) winds blowing from west to east and lying above the trade winds in the tropics | Synonyms: antitrade wind |
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antitrades | (noun) wind in the upper atmosphere blowing above but in the opposite direction from the trade winds | - |
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antitussive | (noun) any medicine used to suppress or relieve coughing | - |
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antitype | (noun) a person or thing represented or foreshadowed by an earlier type or symbol; especially a figure or event in the New Testament having a counterpart in the Old Testament | - |
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(noun) an opposite or contrasting type | - |
antivenene | (noun) an antitoxin that counteracts the effects of venom from the bite of a snake or insect or other animal | Synonyms: antivenin |
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antivenin | (noun) an antitoxin that counteracts the effects of venom from the bite of a snake or insect or other animal | Synonyms: antivenene |
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antiviral | (noun) any drug that destroys viruses | Synonyms: antiviral agent, antiviral drug |
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antler | (noun) deciduous horn of a member of the deer family | - |
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antlion | (noun) winged insect resembling a dragonfly; the larvae (doodlebugs) dig conical pits where they wait to catch e.g. ants | Synonyms: ant lion, antlion fly |
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(noun) the larva of any of several insects | Synonyms: ant lion, doodlebug |
antonym | (noun) a word that expresses a meaning opposed to the meaning of another word, in which case the two words are antonyms of each other | Synonyms: opposite, opposite word |
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antonymy | (noun) the semantic relation that holds between two words that can (in a given context) express opposite meanings | - |
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antrum | (noun) a natural cavity or hollow in a bone | - |
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anuran | (noun) any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species | Synonyms: batrachian, frog, salientian, toad, toad frog |
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anuresis | (noun) inability to urinate | Synonyms: anuria |
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anuria | (noun) inability to urinate | Synonyms: anuresis |
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anus | (noun) the excretory opening at the end of the alimentary canal | - |
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anvil | (noun) a heavy block of iron or steel on which hot metals are shaped by hammering | - |
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(noun) a small bone in the middle ear between the malleus and the stapes | Synonyms: incus |
anxiety | (noun) a vague unpleasant emotion that is experienced in anticipation of some (usually ill-defined) misfortune | - |
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(noun) (psychiatry) a relatively permanent state of worry and nervousness occurring in a variety of mental disorders, usually accompanied by compulsive behavior or attacks of panic | Synonyms: anxiousness |
anxiolytic | (noun) a tranquilizer used to relieve anxiety and reduce tension and irritability | Synonyms: antianxiety drug, anxiolytic drug, minor tranquilizer, minor tranquilliser, minor tranquillizer |
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anxiousness | (noun) a feeling of mild anxiety about possible developments | Synonyms: disquiet |
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(noun) (psychiatry) a relatively permanent state of worry and nervousness occurring in a variety of mental disorders, usually accompanied by compulsive behavior or attacks of panic | Synonyms: anxiety |