delta wave
English Thesaurus
1. the normal brainwave in the encephalogram of a person in deep dreamless sleep; occurs with high voltage and low frequency (1 to 4 hertz) (noun.phenomenon)
| hypernym | : | brain wave, brainwave, cortical potential, |
| definition | : | (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph (noun.phenomenon) |
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