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

 

gecko

 noun
noun
BrE BrE//ˈɡekəʊ//
 
; NAmE NAmE//ˈɡekoʊ//
 
(pl. geckos, geckoes) Amphibians and reptiles
 
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a small lizard (= a type of reptile) that lives in warm countries See related entries: Amphibians and reptiles Word Origin late 18th cent.: from Malay dialect geko, gekok, imitative of its cry.
See the Oxford Advanced American Dictionary entry: gecko