/ Thesaurus / R Synonyms of rice grass Find synonyms for: Noun1. ricegrass, rice grass, cereal, cereal grassusage: any grass of the genus OryzopsisWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: aversion Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language