/ Dictionary / Index M morceau*: Meaning and Definition of Find definitions for: mor•ceau Pronunciation: (môr-sō'), [key] — pl. -ceaux piece; morsel. an excerpt or passage of poetry or music. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. morbilli mordacious Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language