molybdenum

名词 n.
中文释义
发音 məlĭb'dĭnəm

英文释义

名词 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. countable,uncountable
    — The metals at preſent amount to 21 ; only 11 of which were known before the year 1730. Their names are gold, ſilver, platinum, mercury, copper, iron, tin, lead, zinc, antimony, biſmuth, arſenic, cobalt, nickel, manganeſe, tungſten, molybdenum, uranium, tellurium, titanium, chromum.
  2. A single atom of this element. countable,uncountable
    — a quadruple bond between molybdenums

词形变化

molybdenums plural molybdænum alternative,archaic

词汇关系

衍生词
chromoly dimolybdenum ferromolybdenum moly molybdate molybdenated molybdenian molybdeniferous molybdenum blue molybdenum carbonyl molybdenum chloride molybdenum disulfide molybdenum disulphide molybdenum hexacarbonyl molybdenum orange molybdenum oxide molybdenum sulfide molybdenum sulphide molybdenum trioxide molybdian molybdo- molybdosis nonmolybdenum organomolybdenum phosphomolybdenum radiomolybdenum trimolybdenum
相关词
molybdena molybdenite molybdic molybdite molybdous powellite wulfenite

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.
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