/ Dictionary / Index D Dallis grass: Meaning and Definition of Find definitions for: Dal'lis grass" Pronunciation: (dal'is), [key] a pasture grass, Paspalum dilatatum, native to South America and naturalized in the southern U.S. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dallisgrass (Thesaurus) Dallin Dall's sheep Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language