- brainwave, brain wave, cortical potential - (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph
--1 is a kind of bioelectricity
--1 has particulars:alpha rhythm, alpha wave; beta rhythm, beta wave; delta rhythm, delta wave; theta rhythm, theta wave; 1 of 2 senses of brainwave - insight, brainstorm, brainwave - the clear (and often sudden) understanding of a complex situation
--2 is a kind of understanding, apprehension, discernment, savvy
--2 has particulars:light; revelation; discovery, breakthrough, find; flash