/ Dictionary / Index M mesomorph: Meaning and Definition of Find definitions for: mes•o•morph Pronunciation: (mez'u-môrf", mes'-, mē'zu-, -su-), [key] — n. a person of the mesomorphic type. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mesomorph (Thesaurus) mesometeorology mesomorphic Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language