/ Dictionary / Index M messan: Meaning and Definition of Find definitions for: mes•san Pronunciation: (mes'un), [key] — n. Scot. a lap dog; small pet dog. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. messaline Messapic Related Content Daily Word Quiz: diurnal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language