the action or fact of making a specified thing smaller or less in amount, degree, or size 缩减,降低 talks on arms reduction. 削减武器谈判。 [count noun]there had been a reduction in the number of casualties. 伤亡人数已经减少。 ■[count noun]the amount by which something is made smaller, less, or lower in price (数量)削减;减价 special reductions on knitwear. 针织品特价。 ■the simplification of a subject or problem to a particular form in presentation or analysis 归纳,简化 the reduction of classical genetics to molecular biology. 将古典遗传学归结为分子生物学。 ■(Mathematics)the process of converting an amount from one denomination to a smaller one, or of bringing down a fraction to its lowest terms (数)简化,缩减,约化;归约 ■(Biology)the halving of the number of chromosomes per cell that occurs at one of the two anaphases of meiosis (生)染色体减半
[count noun]a thing that is made smaller or less in size or amount, in particular 规模(或数量)被减少之物,尤指 ■an arrangement of an orchestral score for piano or for a smaller group of performers 简编曲(管弦乐改编的钢琴曲或小乐队演奏曲) ■a thick and concentrated liquid or sauce made by boiling 浓汤,浓汁 ■a copy of a picture or photograph made on a smaller scale than the original (照片,画)缩小版
the action of remedying a dislocation or fracture by returning the affected part of the body to its normal position 脱臼(或断骨)复位
(Chemistry)the process or result of reducing or being reduced (化)还原;被还原
(Phonetics)substitution of a sound which requires less muscular effort to articulate (语音)弱化 the process of vowel reduction. 元音弱化。
语源
late Middle English (denoting the action of bringing back): from Old French, or from Latin reductio(n-), from reducere 'bring back, restore' (see reduce). The sense development was broadly similar to that of reduce; sense 1 dates from the late 17th cent