| 单词 | rarefy |
| 释义 | rarefy —rarefiable, adj. —rarefier, n. /rair"euh fuy'/, v. , rarefied, rarefying. v.t. 1. to make rare or rarer; make less dense: to rarefy a gas. 2. to make more refined, spiritual, or exalted. v.i. 3. to become rare or less dense; become thinned: Moisture rarefies when heated. [1350-1400; ME rarefien < MF rarefier < L rarefacere, equiv. to rare-, comb. form of rarus RARE1 (for expected rari-; orig. of -e- unclear) + facere to make; see -FY] |
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