/ Dictionary / Index M mountain bluet: Meaning and Definition of Find definitions for: moun'tain blu"et Pronunciation: [key] a European composite plant, Centaurea montana, having raylike blue flowerheads. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mountain bluebird Mountain Brook 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