iodine: [19] Íon was the Greek word for ‘violet’ (indeed it is related to English violet). From it was derived the adjective iódēs ‘violetcoloured’, which was taken by the chemist Joseph Louis Gay-Lussac as the basis of iode, the French term for ‘iodine’ (iodine gives off a purple vapour when heated). The British chemist Sir Humphry Davy adopted it into English, adding the suffix -ine to produce iodine. => violet
iodine (n.)
1814, formed by English chemist Sir Humphrey Davy (1778-1829) from French iode "iodine," coined 1812 by French chemist Joseph Louis Gay-Lussac from Greek ioeides "violet-colored," from ion "the violet; dark blue flower," + eidos "appearance" (see -oid). Davy added the chemical suffix -ine (2) to make it analogous with chlorine and fluorine. So called from the color of the vapor given off when the crystals are heated.
实用例句
1. She dabbed iodine on the cuts on her forehead.
她把碘酒轻搽在前额的伤口上。来自柯林斯例句
2. Iodine smarts when it is put on a cut.
碘酒涂在伤口上真杀得慌.来自《现代汉英综合大词典》
3. The doctor painted iodine on the cut.
医生在伤口上涂点碘酒.来自《现代英汉综合大词典》
4. Iodine tends to localize in the thyroid.
碘容易集于甲状腺.来自《现代英汉综合大词典》
5. Starch yields a blue color in the presence of iodine.
