cayman Meaning, Definition & Usage

  1. noun a semiaquatic reptile of Central and South America that resembles an alligator but has a more heavily armored belly
    caiman.

WordNet

Cay"man noun
Etymology
From the language of Guiana: cf. Sp. caiman.
Definitions
  1. (Zoöl.) The south America alligator. See Alligator. Sometimes written caiman.

Webster 1913