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English definition of “brainwave”

brainwave

noun [C] uk   /ˈbreɪn.weɪv/ UK informal us  

brainwave noun [C] (IDEA)

(US brainstorm) a sudden clever idea: I couldn't see how I could get home from the station - then I had a brainwave.

brainwave noun [C] (PATTERN)

any of several patterns of electrical activity in the brain
(Definition of brainwave from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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