Found 2 items, similar to molybdenum.
English → English (WordNet) Definition: molybdenum molybdenum n : a polyvalent metallic element that resembles chromium and tungsten in its properties; used to strengthen and harden steel [syn: Mo, atomic number 42]
English → English (gcide) Definition: Molybdenum Molybdenum \Mol`yb*de"num\, n. [NL.: cf. F. molybd[`e]ne. See Molybdena.] (Chem.) 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 number 42. Atomic weight 95.94. [1913 Webster +PJC]