/ Dictionary / Index M Muir Glacier: Meaning and Definition of Find definitions for: Muir' Gla'cier Pronunciation: [key] a glacier in SE Alaska, flowing SE from Mt. Fairweather into Glacier Bay. 350 sq. mi. (905 sq. km). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Muir mujahedin Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language