molybdenum
n. 钼 [化] 钼
发音
其它
/məˈlɪbdɪnəm/
US
/məˈlɪbdɪnəm/
US
/məˈlɪbdɪnəm/
词形变化
molybdenums
复数
molybdenums
别名
molybdænum
释义与例句
n.
-
1.
A chemical element (symbol Mo) with an atomic number of 42: a silvery metal, not found as a free element, used in steel alloys.
钼
可数 不可数 -
2.
A single atom of this element.
可数 不可数a quadruple bond between molybdenums
词汇关系
相关短语
词源
From New Latin molybdaenum, from molybdaena (“any of various substances resembling lead”), from Ancient Greek μολύβδαινα (molúbdaina, “a plummet, piece of lead”), from μόλυβδος (mólubdos, “lead; graphite”), from an Anatolian word cognate with Lydian 𐤪𐤠𐤭𐤦𐤥𐤣𐤠 (mariwda, “dark”), from Proto-Indo-European *morkʷ-iyo-, from a root *morkʷ- (“dark”), cognate with English murk. Cf. Latin plumbum nigrum 'lead'. The suffix is + -um (“a chemical element”). Attested since the last quarter of 18th century.
来源：wiktionary