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Definition of Delta rhythm
1. Noun. The normal brainwave in the encephalogram of a person in deep dreamless sleep; occurs with high voltage and low frequency (1 to 4 hertz).
Medical Definition of Delta rhythm
1. Brain waves in the electroencephalogram which have a frequency below 3 1/2 per second. They are typical in deep sleep, in infancy, and in serious brain disorders. (12 Dec 1998)
Lexicographical Neighbors of Delta Rhythm
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