子し宮きゅう腔くうしきゅうくうMeanings1nounuterine cavityMedical term for the interior space of the uterus.子し宮きゅう腔くうの形けい状じょうは超ちょう音おん波ぱ検けん査さで確かく認にんできる。The shape of the uterine cavity can be confirmed by ultrasound examination.