rarefy

动词 v.
中文释义

英文释义

动词 v.
  1. To make rare, thin, porous, or less dense. transitive
    — By means of this gauge, Mr. Smeaton judged that his machine was incomparably better than any former one, as it seemed to rarefy the air in the receiver 1000, or even 2000 times, while the best of these only rarefied it about 140[…]
  2. To become rare, thin or less dense. intransitive
    — For if The^([sic]) water rarefies and then Condenses, all that great mass of water of the Lake of the Ilinois rises in its vast basin when it rarefies, and falls when it condenses. And, as water always rises as much as it falls, it would[…]

词形变化

rarefies present,singular,third-person rarefying participle,present rarefied participle,past rarefied past rarify alternative,proscribed,sometimes

词汇关系

近义词
stretch
反义词
condense
相关词
rarefaction

词源

From Middle English rarefien, from Old French rarefier (French raréfier), from Latin rarefacere (“make rare”). By surface analysis, rare + -fy.
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