单词
rarefy
英 ['re?r?fa?]
美['r?r?,fai]
基本信息
- vt. 使纯化；变稀薄；精选
- vi. 变稀薄；纯化
TOEFL
词态变化
第三人称单数:?rarefies;过去式:?rarefied;过去分词:?rarefied;现在分词:?rarefying;
中文词源
rarefy 变稀薄，使高雅
来自 rare,稀薄的，罕见的，-fy,使。引申词义使精深，使高雅。
英文词源
- rarefy (v.)
- late 14c., from Old French rarefier (14c.) and directly from Medieval Latin rarificare, from Latin rarefacere "make rare," from rarus "rare, thin" (see rare (adj.1)) + facere "to make" (see factitious). Related: Rarefied.
rarefy相关单词