| aspergillosis | (noun) an opportunistic infection by a fungus of the genus Aspergillus; characterized by inflammation and lesions of the ear and other organs | - |
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| (noun) disease especially in agricultural workers caused by inhalation of Aspergillus spores causing lumps in skin and ears and respiratory organs | - |
| (noun) severe respiratory disease of birds that takes the form of an acute rapidly fatal pneumonia in young chickens and turkeys | Synonyms: brooder pneumonia |
| asphyxiating | (adjective) tending to deprive of oxygen | - |
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| aspiring | (adjective) desiring or striving for recognition or advancement | Synonyms: aspirant, wishful |
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| assagai | (noun) the slender spear of the Bantu-speaking people of Africa | Synonyms: assegai |
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| assegai | (noun) the slender spear of the Bantu-speaking people of Africa | Synonyms: assagai |
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| assemblage | (noun) the social act of assembling | Synonyms: assembly, gathering |
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| (noun) a system of components assembled together for a particular purpose | Synonyms: hookup |
| (noun) a group of persons together in one place | Synonyms: gathering |
| (noun) several things grouped together or considered as a whole | Synonyms: accumulation, aggregation, collection |
| assembling | (noun) the act of gathering something together | Synonyms: aggregation, collecting, collection |
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| assenting | (adjective) expressing agreement or consent | Synonyms: assentient |
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| (noun) agreeing with or consenting to (often unwillingly) | Synonyms: accession |
| asserting | (adjective) relating to the use of or having the nature of a declaration | Synonyms: declarative, declaratory |
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| assign | (verb) select something or someone for a specific purpose | Synonyms: set apart, specify |
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| (verb) attribute or credit to | Synonyms: ascribe, attribute, impute |
| (verb) decide as to where something belongs in a scheme | Synonyms: attribute |
| (verb) attribute or give | Synonyms: put |
| (verb) transfer one's right to | - |
| (verb) give out | Synonyms: allot, portion |
| (verb) make undue claims to having | Synonyms: arrogate |
| (verb) give an assignment to (a person) to a post, or assign a task to (a person) | Synonyms: delegate, depute, designate |
| assignable | (adjective) legally transferable to the ownership of another | Synonyms: conveyable, negotiable, transferable, transferrable |
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| assignation | (noun) a secret rendezvous (especially between lovers) | Synonyms: tryst |
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| (noun) the act of distributing by allotting or apportioning; distribution according to a plan | Synonyms: allocation, allotment, apportioning, apportionment, parceling, parcelling |
| assigned | (adjective) appointed to a post or duty | - |
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| assignee | (noun) (law) the party to whom something is assigned (e.g., someone to whom a right or property is legally transferred) | - |
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| assigning | (noun) the act of distributing something to designated places or persons | Synonyms: assignment |
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| assignment | (noun) a duty that you are assigned to perform (especially in the armed forces) | Synonyms: duty assignment |
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| (noun) the act of putting a person into a non-elective position | Synonyms: appointment, designation, naming |
| (noun) the act of distributing something to designated places or persons | Synonyms: assigning |
| (noun) an undertaking that you have been assigned to do (as by an instructor) | - |
| (noun) the instrument by which a claim or right or interest or property is transferred from one person to another | - |
| (noun) (law) a transfer of property by deed of conveyance | Synonyms: grant |
| assignor | (noun) (law) the party who makes an assignment | - |
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| assimilating | (adjective) capable of taking (gas, light, or liquids) into a solution | Synonyms: assimilative, assimilatory |
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| assuage | (verb) provide physical relief, as from pain | Synonyms: alleviate, palliate, relieve |
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| (verb) satisfy (thirst) | Synonyms: allay, quench, slake |
| (verb) cause to be more favorably inclined; gain the good will of | Synonyms: appease, conciliate, gentle, gruntle, lenify, mollify, pacify, placate |
| assuagement | (noun) the feeling that comes when something burdensome is removed or reduced | Synonyms: alleviation, relief |
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| assuming | (adjective) excessively forward | Synonyms: assumptive, presumptuous |
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| assurgent | (adjective) growing or extending upward | - |
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| (adjective) rising from the sea | - |
| assuring | (adjective) giving confidence | - |
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| astereognosis | (noun) a loss of the ability to recognize objects by handling them | Synonyms: tactile agnosia |
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| 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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| astigmatism | (noun) (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point | Synonyms: astigmia |
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| (noun) (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people | Synonyms: astigmia |
| 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 |
| astonishing | (adjective) so surprisingly impressive as to stun or overwhelm | Synonyms: astounding, staggering, stupefying |
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| (adjective) surprising greatly | Synonyms: amazing |
| astonishingly | (adverb) in an amazing manner; to everyone's surprise | Synonyms: amazingly, surprisingly |
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| astounding | (adjective) so surprisingly impressive as to stun or overwhelm | Synonyms: astonishing, staggering, stupefying |
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| (adjective) bewildering or striking dumb with wonder | Synonyms: dumbfounding, dumfounding |
| astragal | (noun) a beaded molding for edging or decorating furniture | Synonyms: bead, beading, beadwork |
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| (noun) the bone in the ankle that articulates with the leg bones to form the ankle joint | Synonyms: anklebone, astragalus, talus |
| astragalar | (adjective) of or relating to the anklebone | - |
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| astragalus | (noun) the bone in the ankle that articulates with the leg bones to form the ankle joint | Synonyms: anklebone, astragal, talus |
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| astringe | (verb) become constricted or compressed | - |
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| (verb) constrict or bind or draw together | - |
| 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 |
| astrobiology | (noun) the branch of biology concerned with the effects of outer space on living organisms and the search for extraterrestrial life | Synonyms: exobiology, space biology |
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| astrogate | (verb) navigate in space | - |
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| (verb) guide in interplanetary travel | - |
| astrogator | (noun) the navigator of a spacecraft | - |
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| astroglia | (noun) tissue consisting of large stellate neuroglial cells | Synonyms: macroglia |
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| astrologer | (noun) someone who predicts the future by the positions of the planets and sun and Moon | Synonyms: astrologist |
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| astrological | (adjective) relating to or concerned with astrology | - |
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| astrologist | (noun) someone who predicts the future by the positions of the planets and sun and Moon | Synonyms: astrologer |
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| astrology | (noun) a pseudoscience claiming divination by the positions of the planets and sun and moon | Synonyms: star divination |
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| astronavigation | (noun) navigating according to the positions of the stars | Synonyms: celestial navigation |
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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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| asynergic | (adjective) of or relating to the state of asynergy; lacking synergy | - |
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| asynergy | (noun) absence of coordination of organs or body parts that usually work together harmoniously | Synonyms: asynergia |
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| atherogenesis | (noun) the formation of atheromas on the walls of the arteries as in atherosclerosis | - |
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| atmoradiograph | (noun) a device which measures the frequency of occurrence of atmospherics. | - |
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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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| atopognosis | (noun) absence or loss of topognosia; inability to locate correctly a point of touch | Synonyms: atopognosia |
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| attacking | (adjective) disposed to attack | Synonyms: assaultive |
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| attending | (adjective) giving practical help to | Synonyms: ministrant |
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| (noun) the act of being present (at a meeting or event etc.) | Synonyms: attendance |
| (noun) the process whereby a person concentrates on some features of the environment to the (relative) exclusion of others | Synonyms: attention |
| auberge | (noun) a hotel providing overnight lodging for travelers | Synonyms: hostel, hostelry, inn, lodge |
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| aubergine | (noun) egg-shaped vegetable having a shiny skin typically dark purple but occasionally white or yellow | Synonyms: eggplant, mad apple |
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| (noun) hairy upright herb native to southeastern Asia but widely cultivated for its large glossy edible fruit commonly used as a vegetable | Synonyms: brinjal, eggplant, eggplant bush, garden egg, mad apple, Solanum melongena |
| audiogram | (noun) a graphical representation of a person's auditory sensitivity to sound | - |
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| audiology | (noun) the measurement of hearing | Synonyms: audiometry |
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| augend | (noun) a number to which another number (the addend) is added | - |
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| auger | (noun) hand tool for boring holes | Synonyms: gimlet, screw auger, wimble |
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| (noun) a long flexible steel coil for dislodging stoppages in curved pipes | Synonyms: plumber's snake, snake |
| aught | (noun) a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential | Synonyms: cipher, cypher, goose egg, nada, naught, nil, nix, nothing, null, zero, zilch, zip, zippo |
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| augite | (noun) dark-green to black glassy mineral of the pyroxene group containing large amounts of aluminum and iron and magnesium | - |
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| augitic | (adjective) of or relating to or containing the mineral augite | - |
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| augment | (verb) grow or intensify | - |
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| (verb) enlarge or increase | - |
| augmentation | (noun) the act of augmenting | - |
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| (noun) the statement of a theme in notes of greater duration (usually twice the length of the original) | - |
| (noun) the amount by which something becomes greater | - |
| augmentative | (adjective) increasing or having the power to increase especially in size or amount or degree | - |
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| (adjective) intensifying by augmentation and enhancement | Synonyms: enhancive |
| augmented | (adjective) added to or made greater in amount or number or strength | - |
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| augur | (noun) (ancient Rome) a religious official who interpreted omens to guide public policy | Synonyms: auspex |
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| (verb) indicate, as with a sign or an omen | Synonyms: auspicate, betoken, bode, forecast, foreshadow, foretell, omen, portend, predict, prefigure, presage, prognosticate |
| (verb) predict from an omen | - |
| augury | (noun) an event that is experienced as indicating important things to come | Synonyms: foretoken, preindication, sign |
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| august | (adjective) profoundly honored | Synonyms: revered, venerable |
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| (adjective) of or befitting a lord | Synonyms: grand, lordly |
| autobiographer | (noun) someone who writes their own biography | - |
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| autobiographic | (adjective) relating to or in the style of an autobiography | Synonyms: autobiographical |
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| (adjective) of or relating to or characteristic of an autobiographer | Synonyms: autobiographical |
| autobiographical | (adjective) relating to or in the style of an autobiography | Synonyms: autobiographic |
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| (adjective) of or relating to or characteristic of an autobiographer | Synonyms: autobiographic |
| autobiography | (noun) a biography of yourself | - |
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| autogamic | (adjective) characterized by or fit for autogamy | Synonyms: autogamous |
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| autogamous | (adjective) characterized by or fit for autogamy | Synonyms: autogamic |
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| autogamy | (noun) self-fertilization in plants | - |
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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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| autogiro | (noun) an aircraft that is supported in flight by unpowered rotating horizontal wings (or blades); forward propulsion is provided by a conventional propeller | Synonyms: autogyro, gyroplane |
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| autograft | (noun) tissue that is taken from one site and grafted to another site on the same person | Synonyms: autoplasty |
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| autograph | (noun) something written by one's own hand | - |
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| (noun) a person's own signature | Synonyms: John Hancock |
| (verb) mark with one's signature | Synonyms: inscribe |
| autographed | (adjective) bearing an autograph | - |
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| autographic | (adjective) written in the author's own handwriting | - |
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| autogyro | (noun) an aircraft that is supported in flight by unpowered rotating horizontal wings (or blades); forward propulsion is provided by a conventional propeller | Synonyms: autogiro, gyroplane |
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| autoloading | (adjective) (of firearms) capable of automatic loading and firing continuously | Synonyms: self-loading, semiautomatic |
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| autologous | (adjective) derived from organisms of the selfsame individual | - |
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| autoradiograph | (noun) a radiogram produced by radiation emitted by the specimen being photographed | - |
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| autoradiographic | (adjective) of or relating to or produced by autoradiography | - |
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| autoradiography | (noun) producing a radiograph by means of the radiation emitted from the specimen being photographed | - |
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| autoregulation | (noun) (physiology) processes that maintain a generally constant physiological state in a cell or organism | - |
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| autosexing | (noun) (especially of domestic fowl) breeding to reveal differential sex characteristics at hatching | - |
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| autosuggestion | (noun) a system for self-improvement developed by Emile Coue which was popular in the 1920s and 1930s | Synonyms: auto-suggestion, self-suggestion |
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| avenge | (verb) take revenge for a perceived wrong | Synonyms: retaliate, revenge |
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| avenged | (adjective) for which vengeance has been taken | - |
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