Webster’s Revised Unabridged Dictionary · 1913
Beefeater
Beef′eat′er (·ēt′ẽr), n. [Beef + eater; prob. one who eats another's beef, as his servant. Cf. AS. hlāfæta servant, properly a loaf eater.] 1. One who eats beef; hence, a large, fleshy person.
2. One of the yeomen of the guard, in England.
3. (Zoöl.) An African bird of the genus Buphaga, which feeds on the larvæ of botflies hatched under the skin of oxen, antelopes, etc. Two species are known.