Definition of caiman noun from the Oxford Advanced Learner's Dictionary

 

caiman

 noun
(also cayman)noun
BrE BrE//ˈkeɪmən//
 
; NAmE NAmE//ˈkeɪmən//
 
(pl. caimans, caymans) Amphibians and reptiles
 
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a N and S American reptile similar to an alligator See related entries: Amphibians and reptiles Word Origin late 16th cent.: from Spanish caimán, Portuguese caimão, from Carib acayuman.
See the Oxford Advanced American Dictionary entry: caiman