noun, plural ce·ras·tes.
  1. any of several small vipers of the genus Cerastes, including the horned viper, that have a sideways looping motion like that of a sidewinder and inhabit deserts of northern Africa and southwestern Asia.

Origin of cerastes

1768; < New Latin < Greek kerástēs literally, something horned, equivalent to kerat- stem of kéras horn + -tēs noun suffix; earlier in sense “asp,” Middle English < Medieval Latin, Latin, as above
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noun plural -tes
  1. any venomous snake of the genus Cerastes, esp the horned viper

Word Origin for cerastes

C16: from Latin: horned serpent, from Greek kerastēs horned, from keras horn
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012