/ Dictionary / Index B BMR: Meaning and Definition of Find definitions for: BMR Pronunciation: [key] basal metabolic rate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bmr (Thesaurus) B-movie B.M.S. Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language