/ Dictionary / Index M marram grass: Meaning and Definition of Find definitions for: mar'ram grass" Pronunciation: (mar'um), [key] a grass, Ammophila arenaria, having matted, creeping rhizomes, grown on sandy shores of Europe, North America, and Australia to bind the sand. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Marrakesh Marranism Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language