/ Thesaurus / B Synonyms of beta wave Find synonyms for: Noun1. beta rhythm, beta wave, brainwave, brain wave, cortical potentialusage: the normal brainwave in the encephalogram of a person who is awake and alert; occurs with a frequency between 12 and 30 hertzWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: beseech Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language