/ Dictionary / Index M mesocephalic: Meaning and Definition of Find definitions for: mes•o•ce•phal•ic Pronunciation: (mez"ō-su-fal'ik, mes"-, mē"zō-, -sō-), [key] — adj. Cephalom. having a head with a cephalic index between that of dolichocephaly and brachycephaly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mesocecum mesocolon Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language