/ Dictionary / Index G graminivorous: Meaning and Definition of Find definitions for: gram•i•niv•o•rous Pronunciation: (gram"u-niv'ur-us), [key] — adj. feeding or subsisting on grass: a graminivorous bird. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gramineous grammalogue Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language