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Webster 1913 Edition

Noun.

[So called by

Buffon

from

Mangaby

, in Madagascar, where he erroneously supposed them be native.]

(Zool.)

Any one of several African monkeys of the genus

Cercocebus

, as the sooty mangabey (

Cercocebus fuliginosus

), which is sooty black.

[Also written

mangaby

mangabey ‎(plural mangabeys)