The Collaborative International Dictionary of English v.0.48:

Chromic \Chro"mic\, a. (Chem.)
   Pertaining to, or obtained from, chromium; -- said of the
   compounds of chromium in which it has its higher valence.
   [1913 Webster]

   Chromic acid, an acid, H2CrO4, analogous to sulphuric
      acid, not readily obtained in the free state, but forming
      well known salts, many of which are colored pigments, as
      chrome yellow, chrome red, etc.

   Chromic anhydride, a brilliant red crystalline substance,
      CrO3, regarded as the anhydride of chromic acid. It is
      one of the most powerful oxidizers known.
      [1913 Webster]

WordNet (r) 3.0 (2006):

chromic acid
    n 1: an unstable acid known only in solution and as chromate
         salts