骨こつ形けい成せい不ふ全ぜん症しょうこつけいせいふぜんしょうMeanings1nounosteogenesis imperfectamedicine›Medical term for a group of genetic disorders characterized by fragile bones that break easily.骨こつ形けい成せい不ふ全ぜん症しょうは、骨ほね