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1. (n.) molybdenum
a silver-white metallic element, used as an alloy with iron in making hard, high-speed cutting tools.
Etymology: (1810–20; alter. of earlier molybdena < L molybdaena galena < Gk molýbdaina, lit., piece of lead =mólybd(os) lead +-aina n. suffix)
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| Definition of 'molybdenum' |
Princeton's WordNet |
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1. (noun) molybdenum, Mo, atomic number 42
a polyvalent metallic element that resembles chromium and tungsten in its properties; used to strengthen and harden steel
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Webster Dictionary |
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1. (noun) molybdenum
a rare element of the chromium group, occurring in nature in the minerals molybdenite and wulfenite, and when reduced obtained as a hard, silver-white, difficulty fusible metal. Symbol Mo. Atomic weight 95.9
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| Definition of 'molybdenum' |
U.S. National Library of Medicine |
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1. molybdenum
A metallic element with the atomic symbol Mo, atomic number 42, and atomic weight 95.94. It is an essential trace element, being a component of the enzymes xanthine oxidase, aldehyde oxidase, and nitrate reductase. (From Dorland, 27th ed)
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Definitions of molybdenum 
