Rarefaction
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GRE
目录 |
[编辑] 解释
[编辑] GRE 红宝书
- n. 稀薄化
- ［类］ refine : purification / attenuate : rarefaction ( 同义: 提纯 -> 纯化 / 使稀薄 -> 稀薄) 反义词: condensation ( 浓缩)
- ［记］ rarefy（使稀薄）+action
[编辑] Webster Collegiate
noun
- Etymology: French or Medieval Latin; French raréfaction, from Medieval Latin rarefaction-, rarefactio, from Latin rarefacere to rarefy
- Date: 1572
- 1. the action or process of rarefying
- 2. the quality or state of being rarefied
- 3. a state or region of minimum pressure in a medium traversed by compressional waves (as sound waves)
- ? rarefactional adjective
