Words That Rhyme With "Graminivorous" :

4 syllables:

apivorous, baccivorous, carnivorous, detrivorous, frugivorous, fungivorous, granivorous, herbivorous, larvivorous, merdivorous, omnivorous, piscivorous, sanguivorous, vermivorous

5 syllables:

insectivorous, seminivorous

6 syllables:

phytosuccivorous