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Definition of: molybdenum
(mə·lib′də·nəm, mol′ib·dē′·nəm) noun
A silvery-white, very hard metallic element (symbol Mo, atomic number 42) widely distributed in various minerals, used in alloys and essential in trace amounts to plant nutrition. See PERIODIC TABLE. [<NL <L. molybdaena lead, galena <Gk. molybdaina <molybdos lead]
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