Definition of diamondback in US English:



North American
  • 1A large, common North American rattlesnake with diamond-shaped markings.

    Genus Crotalus, family Viperidae: two species

    • ‘It's a showdown between two of the world's most dangerous desert hunters: a red-tailed hawk and a diamondback rattlesnake.’
    • ‘I was asked to pick up a western diamondback rattlesnake bare-handed.’
    • ‘We walked on through the fragile valley watching for diamondbacks and indigo snakes, maybe even for a serpent.’
    • ‘The whirring rattle of a diamondback poised to strike Maj.’
    • ‘At 35 deg C, not atypical of a sunny, summer day in the southwestern U.S. deserts, the western diamondback rattlesnake, Crotalus atrox, shakes its rattle at frequencies up to 90 Hz.’
  • 2

    another term for terrapin (sense 1 of the noun)
    • ‘Volunteers found 21 diamondback terrapins in abandoned crab traps pulled from the edge of the bay.’
    • ‘The periwinkle in turn is preyed upon by blue crabs and diamondback terrapins.’
    • ‘This suggests that all could provide food for diamondback terrapins.’