陥かん没ぼつ骨こっ折せつかんぼつこっせつMeanings1noundepressed fractureMedical term for a fracture where a bone fragment is pushed inward, most commonly used for skull fractures.頭とう部ぶの陥かん没ぼつ骨こっ折せつは緊きん急きゅう手しゅ術じゅつが必ひつ要ようになる