n. 灵长类动物

Quadrumana \Quad*ru"ma*na\, n. pl. [NL. See {Quadrumane}.]
(Zo["o]l.)
A division of the Primates comprising the apes and monkeys;
-- so called because the hind foot is usually prehensile, and
the great toe opposable somewhat like a thumb. Formerly the
Quadrumana were considered an order distinct from the Bimana,
which last included man alone.