Dictionary

delta wave

noun

Definition of DELTA WAVE

:  a high amplitude electrical rhythm of the brain with a frequency of less than four cycles per second that occurs especially in slow-wave sleep, in infancy, and in many diseased conditions of the brain —called also delta, delta rhythm
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First Known Use of DELTA WAVE

1936
Medical Dictionary

delta wave

noun

Medical Definition of DELTA WAVE

:  a high amplitude electrical rhythm of the brain with a frequency of less than 6 hertz that occurs especially in deep sleep, in infancy, and in many diseased conditions of the brain—called also delta, delta rhythm

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