口こう腔くう外げ科かMeaningsNoun1. dental surgery; oral surgeryOther readings口こう腔こう外げ科かKanji used口mouth腔body cavity外outside科departmentPitch accentこうくうげかComposed of口こう腔くうoral cavity; mouthNoun外げ科かsurgery (branch of medicine); department of surgeryNoun