空くう洞どう共きょう振しん器きMeaningsNoun1. cavity resonator; microwave resonance cavity; rhumbatronKanji used空empty air洞cave共together振to wave器instrumentComposed of空くう洞どうcavity; hollow; cave; cavernNoun共きょう振しんresonance; sympathetic vibrationNoun器きdevice; instrument; vessel; container; ability; capacity; calibre; caliberNoun