Try Our Apps


Pore Over vs. Pour Over

beta rhythm

a pattern of high-frequency brain waves (beta waves) observed in normal persons upon sensory stimulation, especially with light, or when they are engaging in purposeful mental activity.
Origin of beta rhythm
1935-40; earlier beta waves, translation of German Betawellen; see alpha rhythm Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
British Dictionary definitions for beta rhythm

beta rhythm

(physiol) the normal electrical activity of the cerebral cortex, occurring at a frequency of 13 to 30 hertz and detectable with an electroencephalograph See also brain wave
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
beta rhythm in Medicine

beta rhythm n.
The second most common waveform occurring in electroencephalograms of the adult brain, characteristically having a frequency from 13 to 30 hertz. It is associated with an alert waking state but can also occur as a sign of anxiety or apprehension. Also called beta wave.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Difficulty index for beta rhythm

Few English speakers likely know this word

Word Value for beta

Scrabble Words With Friends