rarefy

英 ['reərɪfaɪ] 美['rɛrə,fai]
  • 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.