| abatement | (noun) the act of abating | - |
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| (noun) an interruption in the intensity or amount of something | Synonyms: hiatus, reprieve, respite, suspension |
| absorbate | (noun) a material that has been or is capable of being absorbed | - |
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| acetate | (noun) a fabric made from fibers of cellulose acetate | Synonyms: acetate rayon |
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| (noun) a salt or ester of acetic acid | Synonyms: ethanoate |
| acrylate | (noun) a salt or ester of propenoic acid | Synonyms: propenoate |
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| adequateness | (noun) the quality of being able to meet a need satisfactorily: | Synonyms: adequacy |
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| adsorbate | (noun) a material that has been or is capable of being adsorbed | - |
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| advocate | (noun) a person who pleads for a cause or propounds an idea | Synonyms: advocator, exponent, proponent |
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| (noun) a lawyer who pleads cases in court | Synonyms: counsel, counsellor, counselor-at-law, counselor, pleader |
| aerophilately | (noun) the collection and study of airmail stamps | - |
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| affectionateness | (noun) a quality proceeding from feelings of affection or love | Synonyms: fondness, lovingness, warmth |
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| (noun) a positive feeling of liking | Synonyms: affection, fondness, heart, philia, tenderness, warmheartedness, warmness |
| affiliate | (noun) a subsidiary or subordinate organization that is affiliated with another organization | - |
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| (noun) a subordinate or subsidiary associate; a person who is affiliated with another or with an organization | - |
| affricate | (noun) a composite speech sound consisting of a stop and a fricative articulated at the same point (as `ch' in `chair' and `j' in `joy') | Synonyms: affricate consonant, affricative |
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| agate | (noun) an impure form of quartz consisting of banded chalcedony; used as a gemstone and for making mortars and pestles | - |
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| agateware | (noun) pottery that is veined and mottled to resemble agate | - |
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| agglomerate | (noun) a collection of objects laid on top of each other | Synonyms: cumulation, cumulus, heap, mound, pile |
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| (noun) volcanic rock consisting of large fragments fused together | - |
| aggregate | (noun) the whole amount | Synonyms: sum, total, totality |
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| (noun) a sum total of many heterogenous things taken together | Synonyms: congeries, conglomeration |
| (noun) material such as sand or gravel used with cement and water to make concrete, mortar, or plaster | - |
| agnate | (noun) one related on the father's side | Synonyms: patrikin, patrilineal kin, patrilineal sib, patrisib |
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| aguacate | (noun) a pear-shaped tropical fruit with green or blackish skin and rich yellowish pulp enclosing a single large seed | Synonyms: alligator pear, avocado, avocado pear |
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| alendronate | (noun) a tablet (trade name Fosamax) prescribed to prevent or treat osteoporosis in women after menopause | Synonyms: Fosamax |
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| aliterate | (noun) a person who can read but is disinclined to derive information from literary sources | Synonyms: aliterate person |
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| alkylbenzenesulfonate | (noun) sulfonate of alkyl benzene | - |
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| alternate | (noun) someone who takes the place of another person | Synonyms: replacement, surrogate |
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| aluminate | (noun) a compound of alumina and a metallic oxide | - |
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| amateur | (noun) someone who pursues a study or sport as a pastime | - |
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| (noun) an athlete who does not play for pay | - |
| amateurishness | (noun) something that demonstrates a lack of professional competency | - |
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| amateurism | (noun) the conviction that people should participate in sports as a hobby (for the fun of it) rather than for money | - |
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| amphitheater | (noun) an oval large stadium with tiers of seats; an arena in which contests and spectacles are held | Synonyms: amphitheatre, coliseum |
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| (noun) a sloping gallery with seats for spectators (as in an operating room or theater) | Synonyms: amphitheatre |
| animateness | (noun) the property of being animated; having animal life as distinguished from plant life | Synonyms: aliveness, liveness |
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| anteater | (noun) any of several tropical American mammals of the family Myrmecophagidae which lack teeth and feed on ants and termites | Synonyms: New World anteater |
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| (noun) nocturnal burrowing mammal of the grasslands of Africa that feeds on termites; sole extant representative of the order Tubulidentata | Synonyms: aardvark, ant bear, Orycteropus afer |
| (noun) a burrowing monotreme mammal covered with spines and having a long snout and claws for hunting ants and termites; native to Australia | Synonyms: echidna, spiny anteater |
| (noun) a burrowing monotreme mammal covered with spines and having a long snout and claws for hunting ants and termites; native to New Guinea | Synonyms: echidna, spiny anteater |
| (noun) toothless mammal of southern Africa and Asia having a body covered with horny scales and a long snout for feeding on ants and termites | Synonyms: pangolin, scaly anteater |
| (noun) small Australian marsupial having long snout and strong claws for feeding on termites; nearly extinct | Synonyms: banded anteater, Myrmecobius fasciatus, numbat |
| antepenultimate | (noun) the 3rd syllable of a word counting back from the end | Synonyms: antepenult, antepenultima |
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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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| apostate | (noun) a disloyal person who betrays or deserts his cause or religion or political party or friend etc. | Synonyms: deserter, ratter, recreant, renegade, turncoat |
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| appropriateness | (noun) the quality of being specially suitable | - |
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| (noun) appropriate conduct; doing the right thing | Synonyms: rightness |
| archidiaconate | (noun) office or position of an archdeacon | - |
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| arsenate | (noun) a salt or ester of arsenic acid | - |
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| articulateness | (noun) the quality of being facile in speech and writing | Synonyms: fluency, volubility |
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| aspirate | (noun) a consonant pronounced with aspiration | - |
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| (noun) a speech sound having as an obvious concomitant an audible puff of breath, as initial stop consonants or initial h -sounds. | - |
| associate | (noun) a degree granted by a two-year college on successful completion of the undergraduates course of studies | Synonyms: associate degree |
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| (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 | - |
| associateship | (noun) the position of associate (as in an office or academy) | - |
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| atelectasis | (noun) collapse of an expanded lung (especially in infants); also failure of pulmonary alveoli to expand at birth | - |
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| ateleiosis | (noun) a form of infantilism characterized by physical underdevelopment but normal intelligence | Synonyms: ateliosis |
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| atelier | (noun) a studio especially for an artist or designer | Synonyms: artist's workroom |
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| ateliosis | (noun) a form of infantilism characterized by physical underdevelopment but normal intelligence | Synonyms: ateleiosis |
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| atenolol | (noun) an oral beta blocker (trade name Tenormin) used in treating hypertension and angina; has adverse side effects (depression and exacerbation of congestive heart failure etc.) | Synonyms: Tenormin |
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| baccalaureate | (noun) an academic degree conferred on someone who has successfully completed undergraduate studies | Synonyms: bachelor's degree |
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| (noun) a farewell sermon to a graduating class at their commencement ceremonies | - |
| backplate | (noun) plate armor protecting the back; worn as part of a cuirass | - |
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| backwater | (noun) a place or condition in which no development or progress is occurring | - |
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| (noun) a body of water that was created by a flood or tide or by being held or forced back by a dam | - |
| bagatelle | (noun) a table game in which short cues are used to knock balls into holes that are guarded by wooden pegs; penalties are incurred if the pegs are knocked over | Synonyms: bar billiards |
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| (noun) something of little value or significance | Synonyms: fluff, frippery, frivolity |
| (noun) a light piece of music for piano | - |
| baldpate | (noun) a widgeon the male of which has a white crown | Synonyms: American widgeon, Anas americana |
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| (noun) a person whose head is bald or shaved | Synonyms: baldhead, baldy, skin, skinhead |
| barbiturate | (noun) organic compound having powerful soporific effect; overdose can be fatal | - |
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| barrater | (noun) someone guilty of barratry | Synonyms: barrator |
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| beater | (noun) an implement for beating | - |
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| (noun) a worker who rouses wild game from under cover for a hunter | - |
| bedmate | (noun) a person with whom you share a bed | Synonyms: bedfellow |
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| beefeater | (noun) officer in the (ceremonial) bodyguard of the British monarch | Synonyms: yeoman, yeoman of the guard |
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| benzoate | (noun) any salt or ester of benzoic acid | - |
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| bicarbonate | (noun) a salt of carbonic acid (containing the anion HCO3) in which one hydrogen atom has been replaced; an acid carbonate | Synonyms: hydrogen carbonate |
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| bichromate | (noun) a salt of the hypothetical dichromic acid | Synonyms: dichromate |
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| bilateralism | (noun) the property of being symmetrical about a vertical plane | Synonyms: bilateral symmetry, bilaterality |
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| bilaterality | (noun) the property of being symmetrical about a vertical plane | Synonyms: bilateral symmetry, bilateralism |
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| bilgewater | (noun) pretentious or silly talk or writing | Synonyms: baloney, boloney, bosh, drool, humbug, taradiddle, tarradiddle, tommyrot, tosh, twaddle |
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| billingsgate | (noun) foul-mouthed or obscene abuse | Synonyms: scurrility |
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| biquadrate | (noun) an algebraic equation or function of the fourth degree | Synonyms: biquadratic, fourth power, quartic |
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| birthrate | (noun) the ratio of live births in an area to the population of that area; expressed per 1000 population per year | Synonyms: birth rate, fertility, fertility rate, natality |
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| bisulfate | (noun) a salt or an ester of sulphuric acid with the chemical formula HSO4-. | Synonyms: hydrogen sulfate |
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| bitartrate | (noun) an acid tartrate; a hydrogen tartrate | - |
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| biteplate | (noun) a removable dental appliance that is worn in the palate for diagnostic or therapeutic purposes | Synonyms: bite plate |
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| blackwater | (noun) any of several human or animal diseases characterized by dark urine resulting from rapid breakdown of red blood cells | - |
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| bloater | (noun) large fatty herring lightly salted and briefly smoked | - |
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| boater | (noun) a stiff hat made of straw with a flat crown | Synonyms: leghorn, Panama, Panama hat, sailor, skimmer, straw hat |
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| (noun) someone who drives or rides in a boat | Synonyms: boatman, waterman |
| boilerplate | (noun) thick plate iron used in the production of boilers | - |
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| (noun) standard formulations uniformly found in certain types of legal documents or news stories | - |
| bookplate | (noun) a label identifying the owner of a book in which it is pasted | Synonyms: ex libris |
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| borate | (noun) a salt or ester of boric acid | - |
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| borosilicate | (noun) a salt of boric and silicic acids | - |
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| breakwater | (noun) a protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away | Synonyms: bulwark, groin, groyne, jetty, mole, seawall |
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| breastplate | (noun) armor plate that protects the chest; the front part of a cuirass | Synonyms: aegis, egis |
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| bromate | (noun) a chemical compound that contains the bromate ion. | - |
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| bunkmate | (noun) someone who occupies the same sleeping quarters as yourself | - |
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| caliphate | (noun) the office of a caliph | - |
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| (noun) the territorial jurisdiction of a caliph | - |
| campmate | (noun) someone who lives in the same camp you do | - |
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| candidate | (noun) someone who is considered for something (for an office or prize or honor etc.) | Synonyms: prospect |
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| (noun) a politician who is running for public office | Synonyms: campaigner, nominee |
| capitate | (noun) the wrist bone with a rounded head shape that articulates with the 3rd metacarpus | Synonyms: capitate bone, os capitatum |
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| carbamate | (noun) a salt (or ester) of carbamic acid | - |
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| carbohydrate | (noun) an essential structural component of living cells and source of energy for animals; includes simple sugars with small molecules as well as macromolecular substances; are classified according to the number of monosaccharide groups they contain | Synonyms: saccharide, sugar |
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| carbonate | (noun) a salt or ester of carbonic acid (containing the anion CO3) | - |
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| cardinalate | (noun) the office of cardinal | Synonyms: cardinalship |
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| (noun) (Roman Catholic Church) the body of all cardinals of the church; elects and advises the pope | Synonyms: College of Cardinals, Sacred College, Sacred College of Cardinals |
| carinate | (noun) birds having keeled breastbones for attachment of flight muscles | Synonyms: carinate bird, flying bird |
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| castrate | (noun) a man who has been castrated and is incapable of reproduction | Synonyms: eunuch |
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| catechesis | (noun) oral religious instruction (as before baptism or confirmation) | - |
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| catechin | (noun) a tannic acid that is extracted from black catechu as a white crystalline substance | - |
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| catechism | (noun) an elementary book summarizing the principles of a Christian religion; written as questions and answers | - |
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| (noun) a series of questions put to an individual (such as a political candidate) to elicit their views | - |
| catechist | (noun) one who instructs catechumens in preparation for baptism (especially one using a catechism) | - |
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| catecholamine | (noun) any of a group of chemicals including epinephrine and norepinephrine that are produced in the medulla of the adrenal gland | - |
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| catechu | (noun) East Indian spiny tree having twice-pinnate leaves and yellow flowers followed by flat pods; source of black catechu | Synonyms: Acacia catechu, Jerusalem thorn |
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| (noun) extract of the heartwood of Acacia catechu used for dyeing and tanning and preserving fishnets and sails; formerly used medicinally | Synonyms: black catechu |
| catechumen | (noun) a new convert being taught the principles of Christianity by a catechist | Synonyms: neophyte |
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| categorem | (noun) a categorematic expression; a term capable of standing alone as the subject or predicate of a logical proposition | Synonyms: categoreme |
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| categoreme | (noun) a categorematic expression; a term capable of standing alone as the subject or predicate of a logical proposition | Synonyms: categorem |
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| categorisation | (noun) the act of distributing things into classes or categories of the same type | Synonyms: assortment, categorization, classification, compartmentalisation, compartmentalization |
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| (noun) the basic cognitive process of arranging into classes or categories | Synonyms: categorization, classification, sorting |
| (noun) a group of people or things arranged by class or category | Synonyms: categorization, classification |
| categorization | (noun) the act of distributing things into classes or categories of the same type | Synonyms: assortment, categorisation, classification, compartmentalisation, compartmentalization |
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| (noun) the basic cognitive process of arranging into classes or categories | Synonyms: categorisation, classification, sorting |
| (noun) a group of people or things arranged by class or category | Synonyms: categorisation, classification |
| category | (noun) a general concept that marks divisions or coordinations in a conceptual scheme | - |
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| (noun) a collection of things sharing a common attribute | Synonyms: class, family |
| catena | (noun) a chain of connected ideas or passages or objects so arranged that each member is closely related to the preceding and following members (especially a series of patristic comments elucidating Christian dogma) | - |
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| catenary | (noun) the curve theoretically assumed by a perfectly flexible and inextensible cord of uniform density and cross section hanging freely from two fixed points | - |
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