WordNet (r) 3.0 (2006):
unai n 1: a sloth of Central America that has two long claws on each forefoot and three long claws on each hindfoot [syn: two- toed sloth, unau, unai, Choloepus hoffmanni] 2: relatively small fast-moving sloth with two long claws on each front foot [syn: two-toed sloth, unau, unai, Choloepus didactylus]