/ Dictionary / Index M mountain avens: Meaning and Definition of Find definitions for: moun'tain av"ens Pronunciation: [key] any evergreen plant of the genus Dryas, of the rose family, growing in northern or alpine regions of the Northern Hemisphere and having showy, solitary, white or yellow flowers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mountain ash mountain beaver Related Content Daily Word Quiz: maritime Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language