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

 

bluejay

 noun
noun
BrE BrE//ˈbluːdʒeɪ//
 
; NAmE NAmE//ˈbluːdʒeɪ//
 
Birds
 
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a large N American bird with blue feathers on its back and a row of feathers (called a crest ) standing up on its head See related entries: Birds
See the Oxford Advanced American Dictionary entry: bluejay