/ Dictionary / Index M mesenteritis: Meaning and Definition of Find definitions for: mes•en•ter•i•tis Pronunciation: (mes"un-tu-rī'tis, mez"-, mes-en"tu-, mez-), [key] — n. Pathol. inflammation of the mesentery. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mesenchyme mesenteron Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language