/ Dictionary / Index M Mlles.: Meaning and Definition of Find definitions for: Mlles. Pronunciation: [key] Mesdemoiselles. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mlle. MLR Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language