/ Dictionary / Index C cavity resonator: Meaning and Definition of Find definitions for: cav'ity res"onator Pronunciation: [key] — Electronics. Electronics. See under(def. 4a). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cavity cavity wall Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language