Breadcrumb Home > Thesaurus Cite Synonyms of megacycle Find synonyms for: Noun1. megahertz, MHz, megacycle per second, megacycle, Mc, rateusage: one million periods per secondWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.See also: megacycle (Dictionary) Related Content Daily Word Quiz: polemic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language Synonyms Index