/ Dictionary / Index G gama grass: Meaning and Definition of Find definitions for: ga'ma grass" Pronunciation: (gä'mu), [key] an ornamental, reedlike grass, Tripsacum dactyloides, one of the largest in the U.S., growing from 4 to 7 ft. (1.2 to 2.1 m) high. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Gama Gamaliel 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