口こう腔こうTop 20000MeaningsNoun1. oral cavity; mouth (こうくう in medical fields)Other readings口こう腔くうKanji used口mouth腔body cavityPitch accentこうこうUsed in vocabulary口こう腔こう外げ科かdental surgery; oral surgeryNoun口こう腔こう癌がんoral cancerNoun口こう腔こう衛えい生せいdental health; oral hygieneNoun