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two-toed sloth

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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.
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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