| Noun | 1. | genus Choloepus - a genus of Megalonychidae consisting of the two-toed sloth mammal genus - a genus of mammals family Megalonychidae, Megalonychidae - mammal family consisting of the two-toed sloths Choloepus didactylus, two-toed sloth, unai, unau - relatively small fast-moving sloth with two long claws on each front foot Choloepus hoffmanni, two-toed sloth, unai, unau - a sloth of Central America that has two long claws on each forefoot and three long claws on each hindfoot |