/ Dictionary / Index M Mdlle.: Meaning and Definition of Find definitions for: Mdlle. Pronunciation: [key] — pl. Mdlles. Mademoiselle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. m. dict. Mdm. Related Content Daily Word Quiz: stellar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language