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

 

gator

 noun
noun
BrE BrE//ˈɡeɪtə(r)//
 
; NAmE NAmE//ˈɡeɪtər//
 
(North American English, informal)
 
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= alligator Word Origin mid 19th cent.: shortened form.
See the Oxford Advanced American Dictionary entry: gator