/kat"euh ruyn'/ , adj.
1. belonging or pertaining to the group Catarrhini, comprising humans, anthropoid apes, and Old World monkeys, having the nostrils close together and opening downward and a nonprehensile, often greatly reduced or vestigial tail.
n.
2. a catarrhine animal.
Also, catarrhinian /kat'euh rin"ee euhn/ .
[ 1860-65; Catarrhini, pl. of CATARRHINUS katarrhin hook-nosed, equiv. to kata- CATA- + -rhin -nosed, adj. deriv. of rhís nose, snout ]