unau
noun/juːˈnɔː/ · /uːˈnaʊ/
Etymology From Brazilian Portuguese, from Tupian.
1
Linnaeus's two-toed sloth, Choloepus didactylus, a two-toed sloth native to South America.
- The unau, or two-toed sloth, has no tail, and only two nails on the fore feet. The ai, or three-toed sloth, has a short tail, and three nails on every foot. The nose of the unau, is likewise much longer, the forehead higher, and the ears longer than those of the ai.1834, Augustus Addison Gould, editor, A System of Natural History, page 264: