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

brainwave

noun
 
/ˈbreɪnweɪv/
 
/ˈbreɪnweɪv/
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  1. (North American English also brainstorm)
     a sudden good idea
    • I've had a brainwave!
  2. an electrical signal in the brain
See brainwave in the Oxford Advanced American Dictionary
Check pronunciation: brainwave

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