| English noun: brainwave | 
| 1. | brainwave (phenomenon) (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph | 
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 | Synonyms | brain wave, cortical potential | 
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 | Broader (hypernym) | bioelectricity | 
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 | Narrower (hyponym) | alpha rhythm, alpha wave, beta rhythm, beta wave, delta rhythm, delta wave, theta rhythm, theta wave | 
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 | Domain category | neurophysiology | 
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| 2. | brainwave (cognition) the clear (and often sudden) understanding of a complex situation | 
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 | Synonyms | brainstorm, insight | 
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 | Broader (hypernym) | apprehension, discernment, savvy, understanding | 
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 | Narrower (hyponym) | breakthrough, discovery, find, flash, light, revelation | 
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