any tropical American crocodilian of the genus Caiman and related genera, similar to alligators but with a more heavily armoured belly: family Alligatoridae (alligators, etc)
[C16: from Spanish caiman, from Carib cayman, probably of African origin]
caimanorcaiman
—n
[C16: from Spanish caiman, from Carib cayman, probably of African origin]
1570s, from Port. or Sp. caiman, from a Carib word, or perhaps from a Congo African word applied to the reptiles in the new world by African slaves. "The name appears to be one of those like anaconda and bom, boma, which the Portuguese or Spaniards very early caught up in one part of the world, and naturalized