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

 

iguana

 noun
noun
BrE BrE//ɪˈɡwɑːnə//
 
; NAmE NAmE//ɪˈɡwɑːnə//
 
Amphibians and reptiles
 
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a large tropical American lizard (= a type of reptile) See related entries: Amphibians and reptiles Word Origin mid 16th cent.: from Spanish, from Arawak iwana.
See the Oxford Advanced American Dictionary entry: iguana