/ Dictionary / Index G gramineous: Meaning and Definition of Find definitions for: gra•min•e•ous Pronunciation: (gru-min'ē-us), [key] — adj. grasslike. belonging to the Gramineae family of plants. Cf. grass family. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gramicidin graminivorous Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language