| 单词 | iodine |
| 释义 | iodine /uy"euh duyn', -din/; in Chem. also /uy"euh deen'/, n. Chem. a nonmetallic halogen element occurring at ordinary temperatures as a grayish-black crystalline solid that sublimes to a dense violet vapor when heated: used in medicine as an antiseptic. Symbol: I; at. wt.: 126.904; at. no.: 53; sp. gr.: (solid) 4.93 at 20°C. Also, iodin /uy"euh din/. [1814; < F iode ( < Gk iódes, orig. rust-colored, but by folk etym. taken as í(on) violet + -odes -ODE1) + -INE2; introduced by H. Davy] |
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