| citrate | (noun) a salt or ester of citric acid | - |
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| (verb) cause to form a salt or ester of citric acid | - |
| claptrap | (noun) pompous or pretentious talk or writing | Synonyms: blah, bombast, fustian, rant |
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| cloistral | (adjective) of communal life sequestered from the world under religious vows | Synonyms: cloistered, conventual, monastic, monastical |
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| coatrack | (noun) a rack with hooks for temporarily holding coats and hats | Synonyms: coat rack, hatrack |
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| concentrate | (noun) a concentrated example of something | - |
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| (noun) a concentrated form of a foodstuff; the bulk is reduced by removing water | - |
| (noun) the desired mineral that is left after impurities have been removed from mined ore | Synonyms: dressed ore |
| (verb) cook until very little liquid is left | Synonyms: boil down, reduce |
| (verb) make denser, stronger, or purer | - |
| (verb) make central | Synonyms: centralise, centralize |
| (verb) be cooked until very little liquid is left | Synonyms: boil down, decoct, reduce |
| (verb) make more concise | Synonyms: condense, digest |
| (verb) compress or concentrate | Synonyms: condense, contract |
| (verb) direct one's attention on something | Synonyms: center, centre, focus, pore, rivet |
| (verb) draw together or meet in one common center | - |
| concentrated | (adjective) gathered together or made less diffuse | - |
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| (adjective) (of light) transmitted directly from a pointed light source | Synonyms: hard |
| (adjective) being the most concentrated solution possible at a given temperature; unable to dissolve still more of a substance | Synonyms: saturated |
| (adjective) intensely focused | - |
| (adjective) of or relating to a solution whose dilution has been reduced | - |
| concentration | (noun) strengthening the concentration (as of a solute in a mixture) by removing diluting material | - |
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| (noun) bringing together military forces | - |
| (noun) great and constant diligence and attention | Synonyms: assiduity, assiduousness |
| (noun) the strength of a solution; number of molecules of a substance in a given volume | - |
| (noun) the spatial property of being crowded together | Synonyms: compactness, denseness, density, tightness |
| (noun) complete attention; intense mental effort | Synonyms: absorption, engrossment, immersion |
| (noun) increase in density | - |
| constrain | (verb) severely restrict in scope or extent | Synonyms: stiffen, tighten, tighten up |
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| (verb) to close within bounds, or otherwise limit or deprive of free movement | Synonyms: confine, hold, restrain |
| (verb) compel to behave in a certain way | Synonyms: enforce, impose |
| constrained | (adjective) lacking spontaneity; not natural | Synonyms: forced, strained |
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| constrainedly | (adverb) in a constrained manner | - |
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| constraining | (adjective) restricting the scope or freedom of action | Synonyms: confining, constrictive, limiting, restricting |
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| constraint | (noun) the act of constraining; the threat or use of force to control the thoughts or behavior of others | - |
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| (noun) a device that retards something's motion | Synonyms: restraint |
| (noun) the state of being physically constrained | Synonyms: restraint |
| contraband | (adjective) distributed or sold illicitly | Synonyms: black-market, black, bootleg, smuggled |
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| (noun) goods whose importation or exportation or possession is prohibited by law | - |
| contrabandist | (noun) someone who imports or exports without paying duties | Synonyms: moon-curser, moon curser, runner, smuggler |
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| contrabass | (adjective) pitched an octave below normal bass instrumental or vocal range | Synonyms: double-bass |
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| (noun) largest and lowest member of the violin family | Synonyms: bass fiddle, bass viol, bull fiddle, double bass, string bass |
| contrabassoon | (noun) the bassoon that is the largest instrument in the oboe family | Synonyms: contrafagotto, double bassoon |
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| contraception | (noun) birth control by the use of devices (diaphragm or intrauterine device or condom) or drugs or surgery | Synonyms: contraceptive method |
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| contraceptive | (adjective) capable of preventing conception or impregnation | Synonyms: antifertility, prophylactic |
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| (noun) an agent or device intended to prevent conception | Synonyms: birth control device, contraceptive device, preventative, preventive, prophylactic device |
| contraclockwise | (adjective) in the direction opposite to the rotation of the hands of a clock | Synonyms: anticlockwise, counterclockwise |
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| contract | (noun) a variety of bridge in which the bidder receives points toward game only for the number of tricks he bid | Synonyms: contract bridge |
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| (noun) a binding agreement between two or more persons that is enforceable by law | - |
| (noun) (contract bridge) the highest bid becomes the contract setting the number of tricks that the bidder must make | Synonyms: declaration |
| (verb) be stricken by an illness, fall victim to an illness | Synonyms: get, take |
| (verb) make or become more narrow or restricted | Synonyms: narrow |
| (verb) become smaller or draw together | Synonyms: shrink |
| (verb) reduce in scope while retaining essential elements | Synonyms: abbreviate, abridge, cut, foreshorten, reduce, shorten |
| (verb) compress or concentrate | Synonyms: concentrate, condense |
| (verb) enter into a contractual arrangement | Synonyms: undertake |
| (verb) make smaller | - |
| (verb) squeeze or press together | Synonyms: compact, compress, constrict, press, squeeze |
| (verb) engage by written agreement | Synonyms: sign, sign on, sign up |
| contractable | (adjective) (of disease) capable of being transmitted by infection | Synonyms: catching, communicable, contagious, transmissible, transmittable |
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| contracted | (adjective) reduced in size or pulled together | - |
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| contractile | (adjective) capable of contracting or being contracted | - |
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| contractility | (noun) the capability or quality of shrinking or contracting, especially by muscle fibers and even some other forms of living matter | - |
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| contracting | (noun) becoming infected | Synonyms: catching |
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| contraction | (noun) the act of decreasing (something) in size or volume or quantity or scope | - |
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| (noun) (physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber) | Synonyms: muscle contraction, muscular contraction |
| (noun) a word formed from two or more words by omitting or combining some sounds | - |
| (noun) the process or result of becoming smaller or pressed together | Synonyms: compression, condensation |
| contractor | (noun) a bodily organ that contracts | Synonyms: contractile organ |
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| (noun) someone (a person or firm) who contracts to build things | - |
| (noun) (law) a party to a contract | - |
| (noun) the bridge player in contract bridge who wins the bidding and can declare which suit is to be trumps | Synonyms: declarer |
| contractual | (adjective) relating to or part of a binding legal agreement | - |
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| contractually | (adverb) by virtue of a contract | - |
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| contracture | (noun) an abnormal and usually permanent contraction of a muscle | - |
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| contradance | (noun) a type of folk dance in which couples are arranged in sets or face one another in a line | Synonyms: contra danse, contredanse, country-dance, country dancing |
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| (verb) perform a contradance | Synonyms: contra danse, contredanse, country-dance |
| contradict | (verb) prove negative; show to be false | Synonyms: negate |
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| (verb) deny the truth of | Synonyms: contravene, negate |
| (verb) be resistant to | Synonyms: controvert, oppose |
| (verb) be in contradiction with | Synonyms: belie, negate |
| contradiction | (noun) the speech act of contradicting someone | - |
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| (noun) (logic) a statement that is necessarily false | Synonyms: contradiction in terms |
| (noun) opposition between two conflicting forces or ideas | - |
| contradictorily | (adverb) in a contradictory manner | - |
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| contradictoriness | (noun) the relation that exists when opposites cannot coexist | - |
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| contradictory | (adjective) of words or propositions so related that both cannot be true and both cannot be false | - |
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| (adjective) unable for both to exist or be true at the same time | Synonyms: mutually exclusive |
| (adjective) in disagreement | Synonyms: at odds, conflicting, self-contradictory |
| (adjective) that confounds or contradicts or confuses | Synonyms: confounding |
| (noun) two propositions are contradictories if both cannot be true (or both cannot be false) at the same time | - |
| contradistinction | (noun) a distinction drawn on the basis of contrast | - |
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| contradistinguish | (verb) distinguish by contrasting qualities | - |
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| contrafagotto | (noun) the bassoon that is the largest instrument in the oboe family | Synonyms: contrabassoon, double bassoon |
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| contrail | (noun) an artificial cloud created by an aircraft; caused either by condensation due to the reduction in air pressure above the wing surface or by water vapor in the engine exhaust | Synonyms: condensation trail |
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| contraindicate | (verb) make a treatment inadvisable | - |
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| contraindication | (noun) (medicine) a reason that makes it inadvisable to prescribe a particular drug or employ a particular procedure or treatment | - |
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| contralateral | (adjective) on or relating to the opposite side (of the body) | - |
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| contralto | (adjective) of or being the lowest female voice | Synonyms: alto |
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| (noun) the lowest female singing voice | Synonyms: alto |
| (noun) a woman singer having a contralto voice | - |
| contraption | (noun) a device or control that is very useful for a particular job | Synonyms: appliance, contrivance, convenience, gadget, gismo, gizmo, widget |
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| contrapuntal | (adjective) having two or more independent but harmonically related melodic parts sounding together | Synonyms: polyphonic |
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| (adjective) relating to or characteristic of or according to the rules of counterpoint | - |
| contrapuntist | (noun) a composer who specializes in counterpoint | - |
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| contrarian | (noun) an investor who deliberately decides to go against the prevailing wisdom of other investors | - |
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| contrariety | (noun) the relation between contraries | - |
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| contrarily | (adverb) contrary to expectations | Synonyms: contrariwise, on the contrary, to the contrary |
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| (adverb) in a contrary disobedient manner | Synonyms: contrariwise, perversely |
| contrariness | (noun) a fussy and eccentric disposition | Synonyms: crankiness, crotchetiness, grumpiness |
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| (noun) deliberate and stubborn unruliness and resistance to guidance or discipline | Synonyms: perverseness, perversity |
| contrarious | (adjective) characterized by self-willed opposition | Synonyms: cross-grained |
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| contrariwise | (adverb) contrary to expectations | Synonyms: contrarily, on the contrary, to the contrary |
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| (adverb) with the order reversed | Synonyms: the other way around, vice versa |
| (adverb) in a contrary disobedient manner | Synonyms: contrarily, perversely |
| contrary | (adjective) of words or propositions so related that both cannot be true but both may be false | - |
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| (adjective) very opposed in nature or character or purpose | - |
| (adjective) resistant to guidance or discipline | Synonyms: obstinate, perverse, wayward |
| (adjective) in an opposing direction | Synonyms: adverse |
| (noun) exact opposition | - |
| (noun) a relation of direct opposition | Synonyms: opposite, reverse |
| (noun) a logical relation such that two propositions are contraries if both cannot be true but both can be false | - |
| contrast | (noun) the act of distinguishing by comparing differences | - |
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| (noun) the range of optical density and tone on a photographic negative or print (or the extent to which adjacent areas on a television screen differ in brightness) | - |
| (noun) the perceptual effect of the juxtaposition of very different colors | - |
| (noun) a conceptual separation or distinction | Synonyms: demarcation, dividing line, line |
| (noun) the opposition or dissimilarity of things that are compared | Synonyms: direct contrast |
| (verb) put in opposition to show or emphasize differences | - |
| (verb) to show differences when compared; be different | Synonyms: counterpoint |
| contrasting | (adjective) strikingly different; tending to contrast | Synonyms: contrastive |
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| contrastingly | (adverb) in a contrasting manner | - |
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| contrastive | (adjective) of words so related that one contrasts with the other | Synonyms: incompatible |
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| (adjective) strikingly different; tending to contrast | Synonyms: contrasting |
| (adjective) syntactically establishing a relation of contrast between sentences or elements of a sentence | - |
| contrasty | (adjective) having sharp differences between black and white | - |
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| contravallation | (noun) a fortification build around a sieged target by the besiegers to prevent attacks by the defenders. | - |
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| contravene | (verb) deny the truth of | Synonyms: contradict, negate |
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| (verb) go against, as of rules and laws | Synonyms: conflict, infringe, run afoul |
| contravention | (noun) coming into conflict with | Synonyms: dispute |
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| counterattraction | (noun) a rival attraction | - |
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| counterdemonstration | (noun) a demonstration held in opposition to another demonstration | - |
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| counterdemonstrator | (noun) someone who demonstrates in opposition to another demonstration | - |
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| countertransference | (noun) the psychoanalyst's displacement of emotion onto the patient or more generally the psychoanalyst's emotional involvement in the therapeutic interaction | - |
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| deathtrap | (noun) any structure that is very unsafe; where people are likely to be killed | - |
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| decentralisation | (noun) the spread of power away from the center to local branches or governments | Synonyms: decentralization |
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| decentralise | (verb) make less central | Synonyms: decentralize, deconcentrate |
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| decentralised | (adjective) withdrawn from a center or place of concentration; especially having power or function dispersed from a central to local authorities | Synonyms: decentralized |
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| decentralising | (adjective) tending away from a central point | Synonyms: decentralizing |
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| decentralization | (noun) the spread of power away from the center to local branches or governments | Synonyms: decentralisation |
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| (noun) the social process in which population and industry moves from urban centers to outlying districts | Synonyms: decentalisation |
| decentralize | (verb) make less central | Synonyms: decentralise, deconcentrate |
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| decentralized | (adjective) withdrawn from a center or place of concentration; especially having power or function dispersed from a central to local authorities | Synonyms: decentralised |
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| decentralizing | (adjective) tending away from a central point | Synonyms: decentralising |
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| decentration | (noun) Jean Piaget's theory of cognitive development where a child slowly moves away from an egocentric world to a world shared with others. | Synonyms: decentering |
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| deconcentrate | (verb) make less central | Synonyms: decentralise, decentralize |
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| defenestrate | (verb) throw through or out of the window | - |
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| defenestration | (noun) the act of throwing someone or something out of a window | - |
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| demonstrability | (noun) capability of being demonstrated or logically proved | Synonyms: provability |
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| demonstrable | (adjective) necessarily or demonstrably true | Synonyms: incontrovertible |
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| (adjective) capable of being demonstrated or proved | Synonyms: provable |
| demonstrably | (adverb) in an obvious and provable manner | Synonyms: incontrovertibly, provably |
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| demonstrate | (verb) establish the validity of something, as by an example, explanation or experiment | Synonyms: establish, prove, shew, show |
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| (verb) provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes | Synonyms: attest, certify, evidence, manifest |
| (verb) give an exhibition of to an interested audience | Synonyms: demo, exhibit, present, show |
| (verb) march in protest; take part in a demonstration | Synonyms: march |
| demonstrated | (adjective) having been demonstrated or verified beyond doubt | - |
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| demonstration | (noun) a show or display; the act of presenting something to sight or view | Synonyms: presentation, presentment |
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| (noun) a public display of group feelings (usually of a political nature) | Synonyms: manifestation |
| (noun) a show of military force or preparedness | - |
| (noun) a visual presentation showing how something works | Synonyms: demo |
| (noun) proof by a process of argument or a series of proposition proving an asserted conclusion | Synonyms: monstrance |
| demonstrative | (adjective) given to or marked by the open expression of emotion | - |
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| (adjective) serving to demonstrate | Synonyms: illustrative |
| (noun) a pronoun that points out an intended referent | Synonyms: demonstrative pronoun |
| demonstratively | (adverb) in a demonstrative manner | - |
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| demonstrativeness | (noun) tending to express your feelings freely | - |
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| demonstrator | (noun) someone who participates in a public display of group feeling | Synonyms: protester |
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| (noun) someone who demonstrates an article to a prospective buyer | Synonyms: sales demonstrator |
| (noun) a teacher or teacher's assistant who demonstrates the principles that are being taught | - |
| denitrator | (noun) Any device used to remove nitrates or other nitrogen compounds, especially from water. | - |
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| detract | (verb) take away a part from; diminish | Synonyms: take away |
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| detraction | (noun) the act of discrediting or detracting from someone's reputation (especially by slander) | - |
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| (noun) a petty disparagement | Synonyms: petty criticism |
| detractive | (adjective) causing to decrease in importance or value | - |
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| detractor | (noun) one who disparages or belittles the worth of something | Synonyms: depreciator, disparager, knocker |
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| detrain | (verb) leave a train | - |
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| detransitivise | (verb) intransitivize | Synonyms: detransitivize, intransitivise, intransitivize |
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| detransitivize | (verb) intransitivize | Synonyms: detransitivise, intransitivise, intransitivize |
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| dextral | (adjective) of or on the right | - |
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| (adjective) preferring to use right foot or hand or eye | - |
| dextrality | (noun) preference for using the right hand | Synonyms: right-handedness |
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| diametral | (adjective) related to or along a diameter | Synonyms: diametric, diametrical |
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