/ Dictionary / Index M mesodontism: Meaning and Definition of Find definitions for: mes•o•dont•ism Pronunciation: (mez"u-don'tiz-um, mes"-, mē"zu-, -su-), [key] — n. the condition of having medium-sized teeth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mesodont mesogastrium Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language