/ Dictionary / Index B barnyard grass: Meaning and Definition of Find definitions for: barn'yard grass" Pronunciation: [key] a weedy, coarse grass, Echinochloa crus-galli, having a spikelike cluster of flowers. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. barnyard golf barnyardism Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language