rhodium (n.)youdaoicibaDictYouDict[rhodium 词源字典]
hard white metallic element, 1804, Modern Latin, coined by its discoverer, English physician William H. Wollaston (1766-1828), and named for the color of solutions containing it, from Greek rhodon "rose" (see rose (n.1)) + metallic element ending -ium.[rhodium etymology, rhodium origin, 英语词源]