The Collaborative International Dictionary of English v.0.48:

Molybdic \Mo*lyb"dic\, a. [Cf. F. molybdique. See molybdena.]
   (Chem.)
   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.
   [1913 Webster]