Breadcrumb Home > Dictionary > Index R ruffed grouse: Meaning and Definition of Find definitions for: ruffed' grouse' Pronunciation: [key] a North American grouse, Bonasa umbellus, having a tuft of black feathers on each side of the neck. See illus. under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ruffed ruffed lemur TrendingHere are the facts and trivia that people are buzzing about. Biographies: Notable Jewish Religious Leaders Current Events This Week: September 2023 Hispanic Population and the 2010 U.S. Census Preamble of the United Nations Charter The Jewish Calendar ✖ Related Content Daily Word Quiz: oblique Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language