/ Dictionary / Index M mesail: Meaning and Definition of Find definitions for: mes•ail Pronunciation: (mes'āl), [key] — n. Armor. a pivoted piece on a helmet between a visor and a beaver. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mesabi Range mésalliance 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