硬こう膜まく外がい血けっ腫しゅMeaningsNoun1. epidural hematoma; epidural haematomaKanji used硬hard like a rock膜membrane外outside血blood腫become swollenComposed of硬こうhardnessNoun膜まくmembrane; filmNoun外がいoutside ...; beyond ...; not included in ...Suffix血けっ腫しゅhematoma; haematomaNoun