of or related to Old World monkeys that have nostrils together and opening downward
source: WordNet 3.0
noun
of Africa or Arabia or Asia; having nonprehensile tails and nostrils close together
source: WordNet 3.0
One of the Catarrhina, a division of Quadrumana, including the Old World monkeys and apes which have the nostrils close together and turned downward. See Monkey.