Monkey

**Semantic type:** Mammal

**Definition:** Any haplorhine primate not belonging to the family Tarsiidae, Hylobatidae, Pongidae, or Hominidae; this does not correspond to any taxon. This group is divided into Old World monkeys (Cercopithecidae) and New World monkeys (Callitrichidae and Cebidae). Many types are used as an experimental model for human disease and drug testing.

**Synonyms:** - MONKEY - Monkeys