Molybdenum :: Molybdenum (n.) 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..
Molybdic :: Molybdic (a.) Of, pertaining to, or containing, molybdenum; specif., designating those compounds in which the element has a higher valence, as contrasted with molybdous compounds; as, molybdic oxide..
Molybdous :: Molybdous (a.) Of, pertaining to, or containing, molybdenum; specif., designating those compounds in which molybdenum has a lower valence as contrasted with molybdic compounds..