two-toed sloth Word Origin noun
- either of two sloths of the genus Choloepus, having two claws on the forelimbs and three on the hind limbs, including C. didactylus and C. hoffmanni.
Origin of two-toed sloth First recorded in 1765–75 Also called u·nau, u·nai [yoo-naw, oo-nou] /yuˈnɔ, uˈnaʊ/. British Dictionary definitions for unau unau noun
- the two-toed slothSee sloth (def. 1)
Word Origin for unau C18: via French from Tupi