/ Dictionary / Index M myocyte: Meaning and Definition of Find definitions for: my•o•cyte Pronunciation: (mī'u-sīt"), [key] — n. a contractile cell, esp. an elongated cell in sponges that forms a sphincter around body openings. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. myoclonus myoelectric 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