Sa″ki (sā″kĭ), n. [Cf. F. & Pg. saki; probably from the native name.] (Zoöl.) Any one of several species of South American monkeys of the genus Pithecia. They have large ears, and a long hairy tail which is not prehensile.
☞ The black saki (Pithecia satanas), the white-headed (P. leucocephala), and the red-backed, or hand-drinking, saki (P. chiropotes), are among the best-known.