noun, plural ua·ka·ris.
any of several medium-sized, tree-dwelling Amazon basin monkeys of the genus Cacajao, the only New World monkeys having a short tail: all are now rare.
Origin of uakari
1860–65; < Tupi and Guarani uakari
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019