Definition of Macacus in English:

Macacus

Pronunciation /məˈkeɪkəs/

noun

historical Zoology
  • A genus (now called Macaca) of Old World monkeys of the family Cercopithecidae, originally comprising a large number of African and Asian species, but later restricted to a smaller number of chiefly Asian species; (also macacus) a member of this genus, a macaque.

    Although it was the name used throughout the 19th century, Macacus is now considered an invalid variant of Macaca in zoological nomenclature.

Origin

Mid 19th century; earliest use found in Henry McMurtrie (1793–1865). From scientific Latin Macacus, alteration of Macaca from French macaque.