Adjacent Words

brainwave definitions

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WordNet (r) 3.0 (2005)

n
1: (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph [syn: brainwave, brain wave, cortical potential]
2: the clear (and often sudden) understanding of a complex situation [syn: insight, brainstorm, brainwave]

Oxford Reference Dictionary

n. 1 (usu. in pl.) an electrical impulse in the brain. 2 colloq. a sudden bright idea.

Collin's Cobuild Dictionary

(brainwaves) 1. If you have a brainwave, you suddenly have a clever idea. (BRIT; in AM, usually use brainstorm) In 1980 she had a brainwave that changed her life. N-COUNT 2. Brainwaves are electrical signals produced by the brain which can be recorded and measured. His brainwaves were constantly monitored. N-PLURAL