| abarticulation | (noun) dislocation of a joint | - |
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| abdominoplasty | (noun) cosmetic surgery of the abdomen to remove wrinkles and tighten the skin over the stomach | Synonyms: tummy tuck |
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| ablactate | (verb) gradually deprive (infants and young mammals) of mother's milk | Synonyms: wean |
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| ablactation | (noun) the act of substituting other food for the mother's milk in the diet of a child or young mammal | Synonyms: weaning |
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| (noun) the cessation of lactation | - |
| ablate | (verb) wear away through erosion or vaporization | - |
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| (verb) remove an organ or bodily structure | - |
| ablated | (adjective) made smaller or less by melting or erosion or vaporization | - |
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| ablation | (noun) surgical removal of a body part or tissue | Synonyms: cutting out, excision, extirpation |
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| (noun) the erosive process that reduces the size of glaciers | - |
| ablative | (adjective) relating to the ablative case | - |
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| (adjective) tending to ablate; i.e. to be removed or vaporized at very high temperature | - |
| (noun) the case indicating the agent in passive sentences or the instrument or manner or place of the action described by the verb | Synonyms: ablative case |
| ablaut | (noun) a vowel whose quality or length is changed to indicate linguistic distinctions (such as sing sang sung song) | - |
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| ablaze | (adjective) resembling flame in brilliance or color | - |
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| (adjective) lighted with red light as if with flames | Synonyms: inflamed, reddened |
| (adjective) lighted up by or as by fire or flame | Synonyms: afire, aflame, aflare, alight, on fire |
| (adjective) keenly excited (especially sexually) or indicating excitement | Synonyms: aflame, aroused |
| absquatulate | (verb) run away; usually includes taking something or somebody along | Synonyms: abscond, bolt, decamp, go off, make off, run off |
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| acanthocephalan | (noun) any of various worms living parasitically in intestines of vertebrates having a retractile proboscis covered with many hooked spines | Synonyms: spiny-headed worm |
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| acclaim | (noun) enthusiastic approval | Synonyms: acclamation, eclat, plaudit, plaudits |
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| (verb) praise vociferously | Synonyms: hail, herald |
| (verb) clap one's hands or shout after performances to indicate approval | Synonyms: applaud, clap, spat |
| acclamation | (noun) enthusiastic approval | Synonyms: acclaim, eclat, plaudit, plaudits |
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| accolade | (noun) a tangible symbol signifying approval or distinction | Synonyms: award, honor, honour, laurels |
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| accumulate | (verb) increase in amount by collecting or gathering | Synonyms: amass, conglomerate, cumulate, gather, pile up |
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| (verb) get or gather together | Synonyms: amass, collect, compile, hoard, pile up, roll up |
| accumulated | (adjective) periodically accumulated over time | Synonyms: accrued |
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| accumulation | (noun) the act of accumulating | Synonyms: accrual, accruement |
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| (noun) several things grouped together or considered as a whole | Synonyms: aggregation, assemblage, collection |
| (noun) (finance) profits that are not paid out as dividends but are added to the capital base of the corporation | - |
| (noun) an increase by natural growth or addition | Synonyms: accretion |
| accumulative | (adjective) marked by acquiring or amassing | - |
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| (adjective) increasing by successive addition | Synonyms: cumulative |
| accumulator | (noun) a voltaic battery that stores electric charge | Synonyms: storage battery |
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| (noun) (computer science) a register that has a built-in adder that adds an input number to the contents of the register | Synonyms: accumulator register |
| (noun) a person who is employed to collect payments (as for rent or taxes) | Synonyms: collector, gatherer |
| acellular | (adjective) not made up of or divided into cells | Synonyms: noncellular |
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| acerola | (noun) acid red or yellow cherry-like fruit of a tropical American shrub very rich in vitamin C | Synonyms: barbados cherry, surinam cherry, West Indian cherry |
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| (noun) tropical American shrub bearing edible acid red fruit resembling cherries | Synonyms: barbados cherry, Malpighia glabra, Surinam cherry, West Indian cherry |
| acetabular | (adjective) of the cup-shaped socket that receives the head of the thigh bone | Synonyms: cotyloid, cotyloidal |
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| acetylate | (verb) receive substitution of an acetyl group | Synonyms: acetylise, acetylize |
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| (verb) introduce an acetyl group into (a chemical compound) | Synonyms: acetylise, acetylize |
| acetylation | (noun) the process of introducing an acetyl group into a compound | - |
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| achlamydeous | (adjective) not having a floral envelope or perianth | - |
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| achondroplasia | (noun) an inherited skeletal disorder beginning before birth; cartilage is converted to bone resulting in dwarfism | Synonyms: achondroplasty, chondrodystrophy, osteosclerosis congenita |
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| achondroplastic | (adjective) of or relating to achondroplasia | - |
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| achondroplasty | (noun) an inherited skeletal disorder beginning before birth; cartilage is converted to bone resulting in dwarfism | Synonyms: achondroplasia, chondrodystrophy, osteosclerosis congenita |
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| acicula | (noun) a needlelike part or structure of a plant or animal or crystal; as a spine or bristle or crystal | - |
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| acicular | (adjective) narrow and long and pointed; as pine leaves | Synonyms: acerate, acerose, needle-shaped |
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| aciculate | (adjective) related to plants or animals or crystals having aciculae or needlelike parts | - |
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| acidulate | (verb) make sour or more sour | Synonyms: acetify, acidify, sour |
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| acrylamide | (noun) a white crystalline amide of propenoic acid can damage the nervous system and is carcinogenic in laboratory animals | - |
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| acrylate | (noun) a salt or ester of propenoic acid | Synonyms: propenoate |
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| acylation | (noun) the process of introducing an acyl group into a compound | - |
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| adulate | (verb) flatter in an obsequious manner | - |
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| adulation | (noun) servile flattery; exaggerated and hypocritical praise | - |
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| adulator | (noun) a person who uses flattery | Synonyms: flatterer |
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| adulatory | (adjective) obsequiously complimentary | Synonyms: flattering |
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| aerophilatelic | (adjective) of or relating to airmail stamps | - |
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| aerophilately | (noun) the collection and study of airmail stamps | - |
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| aeroplane | (noun) an aircraft that has a fixed wing and is powered by propellers or jets | Synonyms: airplane, plane |
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| aesculapian | (adjective) of or belonging to Aesculapius or the healing art | Synonyms: medical |
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| afflatus | (noun) a strong creative impulse; divine inspiration | - |
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| aflame | (adjective) lighted up by or as by fire or flame | Synonyms: ablaze, afire, aflare, alight, on fire |
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| (adjective) keenly excited (especially sexually) or indicating excitement | Synonyms: ablaze, aroused |
| aflare | (adjective) lighted up by or as by fire or flame | Synonyms: ablaze, afire, aflame, alight, on fire |
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| (adjective) streaming or flapping or spreading wide as if in a current of air | Synonyms: flaring |
| aflatoxin | (noun) a potent carcinogen from the fungus Aspergillus; can be produced and stored for use as a bioweapon | - |
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| agalactia | (noun) a condition in which milk is not secreted in the mother's breasts after her child has been delivered | Synonyms: agalactosis |
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| agalactosis | (noun) a condition in which milk is not secreted in the mother's breasts after her child has been delivered | Synonyms: agalactia |
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| ailanthus | (noun) any of several deciduous Asian trees of the genus Ailanthus | - |
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| airplane | (noun) an aircraft that has a fixed wing and is powered by propellers or jets | Synonyms: aeroplane, plane |
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| ala | (noun) a wing of an insect | - |
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| (noun) a flat wing-shaped process or winglike part of an organism | - |
| alabaster | (adjective) of or resembling alabaster | Synonyms: alabastrine |
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| (noun) a very light white | - |
| (noun) a compact fine-textured, usually white gypsum used for carving | - |
| (noun) a hard compact kind of calcite | Synonyms: Mexican onyx, onyx marble, oriental alabaster |
| alabastrine | (adjective) of or resembling alabaster | Synonyms: alabaster |
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| alacritous | (adjective) quick and eager | - |
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| alacrity | (noun) liveliness and eagerness | Synonyms: briskness, smartness |
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| alalia | (noun) paralysis of the vocal cords resulting in an inability to speak | - |
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| alanine | (noun) a crystalline amino acid that occurs in many proteins | - |
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| alar | (adjective) of or relating to the axil | Synonyms: axillary |
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| (adjective) having or resembling wings | Synonyms: alary, aliform, wing-shaped |
| alarm | (noun) a device that signals the occurrence of some undesirable event | Synonyms: alarm system, warning device |
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| (noun) a clock that wakes a sleeper at some preset time | Synonyms: alarm clock |
| (noun) an automatic signal (usually a sound) warning of danger | Synonyms: alarum, alert, warning signal |
| (noun) fear resulting from the awareness of danger | Synonyms: consternation, dismay |
| (verb) warn or arouse to a sense of danger or call to a state of preparedness | Synonyms: alert |
| (verb) fill with apprehension or alarm; cause to be unpleasantly surprised | Synonyms: appal, appall, dismay, horrify |
| alarmed | (adjective) experiencing a sudden sense of danger | - |
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| alarming | (adjective) frightening because of an awareness of danger | - |
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| alarmingly | (adverb) in an alarming manner | - |
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| alarmism | (noun) needless warnings | - |
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| alarmist | (noun) a person who alarms others needlessly | - |
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| alarum | (noun) an automatic signal (usually a sound) warning of danger | Synonyms: alarm, alert, warning signal |
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| alary | (adjective) having or resembling wings | Synonyms: alar, aliform, wing-shaped |
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| alas | (adverb) by bad luck | Synonyms: regrettably, unfortunately, unluckily |
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| alastrim | (noun) a mild form of smallpox caused by a less virulent form of the virus | Synonyms: Cuban itch, Kaffir pox, milk pox, pseudosmallpox, pseudovariola, variola minor, West Indian smallpox, white pox |
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| alate | (adjective) (of seeds or insects) having winglike extensions | Synonyms: alated |
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| alated | (adjective) (of seeds or insects) having winglike extensions | Synonyms: alate |
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| alfilaria | (noun) European weed naturalized in southwestern United States and Mexico having reddish decumbent stems with small fernlike leaves and small deep reddish-lavender flowers followed by slender fruits that stick straight up; often grown for forage | Synonyms: alfileria, clocks, Erodium cicutarium, filaree, filaria, pin clover, pin grass, redstem storksbill |
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| algarobilla | (noun) mesquite pod used in tanning and dyeing | Synonyms: algarroba, algarrobilla |
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| algarrobilla | (noun) mesquite pod used in tanning and dyeing | Synonyms: algarobilla, algarroba |
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| algolagnia | (noun) sexual pleasure derived from inflicting or experiencing pain | Synonyms: algophilia |
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| algolagnic | (adjective) of or relating to algolagnia | - |
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| alhamdulilah | (noun) An expression meaning 'praise God' in Arabic | - |
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| allamanda | (noun) a plant of the genus Allamanda having large showy funnel-shaped flowers in terminal cymes | - |
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| allantoic | (adjective) relating to or characterized by an allantois | - |
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| allantoid | (adjective) shaped like a sausage | Synonyms: sausage-shaped |
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| allantois | (noun) the vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates (reptiles, birds and mammals) | - |
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| allargando | (adjective) (music) gradually decreasing in tempo and broadening in manner | - |
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| allay | (verb) satisfy (thirst) | Synonyms: assuage, quench, slake |
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| (verb) lessen the intensity of or calm | Synonyms: ease, relieve, still |
| allayer | (noun) a person who reduces the intensity (e.g., of fears) and calms and pacifies | Synonyms: comforter, reliever |
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| alprazolam | (noun) an antianxiety agent (trade name Xanax) of the benzodiazepine class | Synonyms: Xanax |
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| alula | (noun) tuft of small stiff feathers on the first digit of a bird's wing | Synonyms: bastard wing, spurious wing |
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| (noun) scalelike structure between the base of the wing and the halter of a two-winged fly | Synonyms: calypter |
| alular | (adjective) pertaining to alulae | - |
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| alveolar | (adjective) pertaining to the tiny air sacs of the lungs | - |
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| (adjective) pertaining to the sockets of the teeth or that part of the upper jaw | - |
| (noun) a consonant articulated with the tip of the tongue near the gum ridge | Synonyms: alveolar consonant, dental, dental consonant |
| alveolate | (adjective) pitted with cell-like cavities (as a honeycomb) | Synonyms: cavitied, faveolate, honeycombed, pitted |
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| ambulacral | (adjective) pertaining to the ambulacra of radial echinoderms | - |
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| ambulacrum | (noun) one of the five areas on the undersurface of an echinoderm on which the tube feet are located | - |
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| ambulance | (noun) a vehicle that takes people to and from hospitals | - |
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| ambulant | (adjective) able to walk about | Synonyms: ambulatory |
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| ambulate | (verb) walk about; not be bedridden or incapable of walking | - |
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| ambulation | (noun) walking about | - |
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| ambulatory | (adjective) relating to or adapted for walking | - |
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| (adjective) able to walk about | Synonyms: ambulant |
| (noun) a covered walkway (as in a cloister) | - |
| ameloblast | (noun) a cell from which tooth enamel develops | - |
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| aminoplast | (noun) a plastic (synthetic resin) made from amino compounds; used as an adhesive and as a coating for paper and textiles | Synonyms: amino plastic, amino resin |
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| amphiprostylar | (adjective) marked by columniation having free columns in porticoes either at both ends or at both sides of a structure | Synonyms: amphiprostyle, amphistylar, porticoed |
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