骨こつ盤ばん位いこつばんいMeanings1nounbreech presentationmedicineMedical term for a fetal position where the buttocks or feet are positioned to be delivered first.骨こつ盤ばん位いの場ば合あい、帝てい王おう切せっ開かいが選せん択たくされることがあります。In cases of breech presentation, a cesarean section may be chosen.
