The Collaborative International Dictionary of English v.0.48:

catabolic \catabolic\ adj. [Formerly spelled katabolic.]
   1. Of or pertaining to catabolism; as, catabolic processes,
      which give rise to substances (katastates) of decreasing
      complexity and increasing stability.
      [1913 Webster + WordNet 1.5]

   2. characterized by destructive metabolism; contrasted with
      anabolic.
      [WordNet 1.5]