two-toed sloth

noun
  1. 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/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018