noun Date: 1840 a long-tailed monkey of any of several African subspecies of a guenon ( Cercopithecus aethiops syn. Chloroebus aethiops ) having greenish-appearing hair and often used in medical research
GREEN MONKEY
Meaning of GREEN MONKEY in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012