/ Dictionary / Index M mud hen: Meaning and Definition of Find definitions for: mud' hen" Pronunciation: [key] any of various marsh-inhabiting birds, esp. the American coot. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mudguard mudhole 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