delta wave

noun

, Physiology.

1. any of the slow brain waves constituting delta rhythm.

Word History and Origins

Origin of delta wave¹

First recorded in 1935–40

Example Sentences

This summer, the delta wave of the pandemic hit a scary number of Americans, including children.

From Washington Post

Data presented to the FDA by Israeli public health officials last week suggested that the country’s Pfizer booster campaign helped curb a delta wave.

From Popular-Science

That finding echoes a smaller study by the Mayo Clinic Health System in August, not yet peer-reviewed, which also showed the Moderna vaccine to be more effective than Pfizer-BioNTech at preventing infections during the delta wave.

From Washington Post

Standard EEG patterns include fast alpha waves, oscillating about 10 times a second and common in consciousness, and slow delta waves, oscillating about once per second and common in nondreaming sleep or under anesthesia.

From MIT Technology Review

The anesthetic ketamine can excite the brain, resulting in alternating alpha and delta waves.

From MIT Technology Review