delta rhythm
noun Physiology.
a pattern of slow brain waves, having a frequency of less than 6 cycles per second as recorded by an electroencephalograph, associated with deep sleep.
Origin of delta rhythm
First recorded in 1935–40
Words nearby delta rhythm
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delta wing
British Dictionary definitions for delta rhythm
delta rhythm
delta wave
noun
physiol
the normal electrical activity of the cerebral cortex during deep sleep, occurring at a frequency of 1 to 4 hertz and detectable with an electroencephalograph
See also brain wave
Medical definitions for delta rhythm
delta rhythm
n.
A brain wave pattern originating from the forward portion of the brain and having a frequency of between 1.5 and 4.0 hertz; it is associated with deep sleep in normal adults.
delta wave