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reduction 音标拼音: [rəd'ʌkʃən] [rid'ʌkʃən] n. 缩小,减少,降低;简化,简约;还原,复原 缩小,减少,降低;简化,简约;还原,复原 reduction缩减 归约 reduction n 1: the act of decreasing or reducing something [ synonym: { decrease}, { diminution}, { reduction}, { step- down}] [ ant: { increase}, { step- up}] 2: any process in which electrons are added to an atom or ion ( as by removing oxygen or adding hydrogen); always occurs accompanied by oxidation of the reducing agent [ synonym: { reduction}, { reducing}] 3: the act of reducing complexity [ synonym: { reduction}, { simplification}] Reduction \ Re* duc" tion\ ( r[- e]* d[ u^] k" sh[ u^] n), n. [ F. r[' e] duction, L. reductio. See { Reduce}.] 1. The act of reducing, or state of being reduced; conversion to a given state or condition; diminution; conquest; as, the reduction of a body to powder; the reduction of things to order; the reduction of the expenses of government; the reduction of a rebellious province. [ 1913 Webster] 2. ( Arith. & Alg.) The act or process of reducing. See { Reduce}, v. t., 6. and { To reduce an equation}, { To reduce an expression}, under { Reduce}, v. t. [ 1913 Webster] 3. ( Astron.) ( a) The correction of observations for known errors of instruments, etc. ( b) The preparation of the facts and measurements of observations in order to deduce a general result. [ 1913 Webster] 4. The process of making a copy of something, as a figure, design, or draught, on a smaller scale, preserving the proper proportions. -- Fairholt. [ 1913 Webster] 5. ( Logic) The bringing of a syllogism in one of the so- called imperfect modes into a mode in the first figure. [ 1913 Webster] 6. ( Chem. & Metal.) The act, process, or result of reducing[ 7]; as, the reduction of iron from its ores; the reduction of an aldehyde into an alcohol. [ 1913 Webster] 7. ( Med.) The operation of restoring a dislocated or fractured part to its former place. [ 1913 Webster] { Reduction ascending} ( Arith.), the operation of changing numbers of a lower into others of a higher denomination, as cents to dollars. { Reduction descending} ( Arith.), the operation of changing numbers of a higher into others of a lower denomination, as dollars to cents. [ 1913 Webster] Syn: Diminution; decrease; abatement; curtailment; subjugation; conquest; subjection. [ 1913 Webster] 290 Moby Thesaurus words for " reduction": abasement, abatement, abbreviation, about- face, abridgment, abstract, acetification, acidification, acidulation, addition, agio, alchemy, alkalization, allayment, alleviation, allowance, analgesia, anesthesia, anesthetizing, apocope, appeasement, approximation, assimilation, assuagement, assumption, astriction, astringency, attenuation, attrition, bank discount, becoming, blunting, bottleneck, break, breakage, breaking, bump, bust, calming, carbonation, cash discount, casting down, catalysis, cervix, chain discount, change, change- over, charge- off, cheapening, chemicalization, circumscription, coarctation, compactedness, compaction, compression, compressure, concavity, concentration, concession, condensation, conquering, consolidation, conspectus, constriction, constringency, contraction, contracture, conversion, crushing, curtailment, cut, cutting, dampening, damping, de- escalation, deadening, debasement, debilitation, decline, decrease, decrement, decrescence, deduction, deflation, degradation, degrading, demotion, demulsion, depletion, depluming, depreciation, depression, derogation, descent, detraction, detrusion, devaluation, devitalization, differentiation, dilution, diminishment, diminuendo, diminution, dip, discount, disgrading, disparagement, displuming, dive, division, domestication, downgrading, drawback, ducking, dulcification, dulling, dying, dying off, ease, easement, easing, effemination, electrolysis, elision, ellipsis, enervation, enfeeblement, epitome, equation, evisceration, evolution, exhaustion, extenuation, extraction, extrapolation, fade- out, falling- off, fatigue, ferment, fermentation, flip- flop, foreshortening, growth, hauling down, hollowness, hourglass, hourglass figure, humbling, humiliation, hushing, hydrogenation, impairment, inanition, integration, interpolation, inversion, involution, isomerism, isthmus, kickback, knitting, languishment, lapse, leniency, lessening, letdown, letup, lightening, loosening, lowering, lulling, markdown, metamerism, metamerization, miniaturization, mitigation, modulation, mollification, multiplication, narrow place, narrowing, naturalization, neck, nitration, nose dive, notation, numbing, oxidation, oxidization, pacification, palliation, passage, penalty, penalty clause, percentage, phosphatization, plummet, plummeting, plunge, polymerism, polymerization, position isomerism, practice, precis, premium, price cut, price fall, price reduction, price- cut, progress, proportion, puckering, pursing, quelling, quietening, quieting, re- formation, rebate, rebatement, recap, recapitulation, reconversion, refund, relaxation, relief, remedy, remission, resolution, retraction, retrenchment, reversal, rollback, sag, sagging, salvage, salving, saturization, scaling down, setoff, shift, shortening, shrinkage, simplicity, sinking, slackening, slash, slump, softening, solidification, soothing, stranglement, strangulation, striction, stricture, stripping of rank, subdual, subduement, submergence, subtraction, summary, summation, suppression, switch, switch- over, syncope, synopsis, systole, taming, tare, telescoping, tempering, thinning, thrusting under, time discount, trade discount, tranquilization, transformation, transit, transition, treading down, tret, truncation, turning into, underselling, volte- face, wasp waist, weakening, working, wrinkling, write- off
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