1) French word used in English 2) Guenon 3) Guenon monkey 4) South African monkey 5) Vervet monkey 
• (n.) A South African monkey (Cercopithecus pygerythrus, / Lelandii). The upper parts are grayish green, finely specked with black. The cheeks and belly are reddish white.
ground-dwelling guenon monkey that is widely distributed in the savannas of Africa.[1 related articles]
Ver'vet noun (Zoology) A South African monkey ( Cercopithecus pygerythrus, or Lelandii ). The upper parts are grayish green, finely specked with black. The cheeks and belly are reddish white. 
[n] - South African monkey with black face and hands
vervet monkey noun South African monkey with black face and hands