| 单词 | per- |
| 释义 | per- 1. a prefix meaning "through," "thoroughly," "utterly," "very": pervert; pervade; perfect. 2. Chem. a prefix used in the names of inorganic acids and their salts that possess the maximum amount of the element specified in the base word: percarbonic (H2C2O5), permanganic (HMnO4), persulfuric (H2S2O8), acids; potassium permanganate (KMnO4); potassium persulfate (K2S2O8). [ < L, comb. form of per PER, and used as an intensive] |
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