delta wave

n. An electrical oscillation occurring in the human brain at a frequency of less than about four hertz as recorded on an electroencephalogram, associated with a state of deep sleep or unconsciousness. Also called delta rhythm.

del′ta wave`

n. any of the slow brain waves constituting delta rhythm. [1935–40]

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Noun

delta wave - the normal brainwave in the encephalogram of a person in deep dreamless sleep; occurs with high voltage and low frequency (1 to 4 hertz)delta rhythmbrain wave, brainwave, cortical potential - (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph

delta wave

del·ta wave

a premature upstroke of the QRS complex due to an atrial ventricular bypass tract as in WPW syndrome.

delta wave

Cardiology An EKG finding in WPW syndrome, seen as a slow upstroke of the QRS wave in a background of short P-R intervals See Wolff-Parkinson-White syndrome
Sleep disorders EEG activity with a frequency of < 4 Hz; in human sleep scoring, the minimum criteria for scoring DWs is 75 µV—peak-to-peak amplitude—and 0.5 second duration—2 Hz

delta wave

Cardiology An EKG finding in WPW syndrome, seen as a slow upstroke of the QRS wave in a background of short P-R intervals. See Wolff-Parkinson-White syndrome.

del·ta wave

(del'tă wāv) 1. A premature upstroke of the QRS complex due to an atrioventricular bypass tract as in Wolff-Parkinson-White syndrome. 2. Synonym(s): delta rhythm.

delta wave

A low-frequency brain wave, recordable on the ELECTROENCEPHALOGRAM, that originates in the frontal part of the brain during deep sleep in normal adults.

delta wave

delta wave

del′ta wave`

delta wave

del·ta wave

delta wave

delta wave

del·ta wave

delta wave

delta wave

Synonyms for delta wave

noun the normal brainwave in the encephalogram of a person in deep dreamless sleep

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