/ Dictionary / Index M myotomy: Meaning and Definition of Find definitions for: my•ot•o•my Pronunciation: (mī-ot'u-mē), [key] — pl. -mies. incision of a muscle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: myotomy (Thesaurus) myotic myotonia Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language