Source : Webster's Revised Unabridged Dictionary (1913)

Carnivorous \Car*niv"o*rous\, a. [L. carnivorus; caro, carnis,
   flesh + varare to devour.]
   Eating or feeding on flesh. The term is applied:
   (a) to animals which naturally seek flesh for food, as the
       tiger, dog, etc.;
   (b) to plants which are supposed to absorb animal food;
   (c) to substances which destroy animal tissue, as caustics.

Source : WordNet®

carnivorous
     adj 1: relating to or characteristic of carnivores; "the lion and
            other carnivorous animals"
     2: (used of plants as well as animals) feeding on animals;
        "carnivorous plants are capable of trapping and digesting
        small animals especially insects" [ant: {herbivorous}, {omnivorous},
         {insectivorous}]