- Mutton is meat from an older sheep.
An example of mutton is meat from a heard of fully grown sheep.
mutton definition by Webster's New World
- the flesh of a sheep, esp. a grown sheep, used as food
- Rare a sheep
Origin: Middle English moton ; from Old French a ram ; from Midieval Latin an unverified form multo, sheep, of Celtic origin, originally as in Welsh mollt, Irish molt
- muttony adjective
mutton definition by American Heritage Dictionary
Origin: Middle English, from Old French mouton, moton, from Medieval Latin multō, multōn-, of Celtic origin; see mel-1 in Indo-European roots.