/ Dictionary / Index M mutton bird: Meaning and Definition of Find definitions for: mut'ton bird" Pronunciation: [key] any of several long-winged seabirds, often used as food, esp. Puffinus tenuirostrisof Australia and Puffinus griseuswhich breeds in the Southern Hemisphere and winters in the Northern Hemisphere. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mutton muttonchops Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language