brain wave

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noun

Usually brain waves. Medicine/Medical. electrical potentials or impulses given off by brain tissue. Compare alpha rhythm, beta rhythm, delta rhythm.
Informal. a sudden idea or inspiration; brainstorm.

Origin of brain wave

First recorded in 1865–70

Words nearby brain wave

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Words related to brain wave

ingenious, whimsical, fantastic, vivid, visionary, offbeat, fanciful, artistic, extravagant, original, romantic, viewpoint, impression, concept, knowledge, consciousness, taste, approach, image, attention

Example sentences from the Web for brain wave

British Dictionary definitions for brain wave

brain wave

noun

any of the fluctuations of electrical potential in the brain as represented on an electroencephalogram. They vary in frequency from 1 to 30 hertz See also alpha rhythm, beta rhythm, delta rhythm

Medical definitions for brain wave

brain wave

n.

A rhythmic fluctuation of electric potential between parts of the brain, as seen on an electroencephalogram.