Dictionary

brain wave

noun

: a pattern or cycle of electrical activity in the brain

Full Definition of BRAIN WAVE

1
:  brainstorm 2a
2
a :  rhythmic fluctuations of voltage between parts of the brain resulting in the flow of an electric current
b :  a current produced by brain waves

First Known Use of BRAIN WAVE

1890

brain wave

noun    (Medical Dictionary)

Medical Definition of BRAIN WAVE

1
:  rhythmic fluctuations of voltage between parts of the brain resulting in the flow of an electric current
2
:  a current produced by brain waves—compare alpha wave, beta wave

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