痂か皮ひかひMeanings1noun, noun-modifying (irregular)crust; scabMedical term for a dried crust formed over a wound or skin lesion. Also used in general contexts.傷きず口ぐちに痂か皮ひができた。A scab formed over the wound.痂か皮ひを無む理りにはがさないでください。Please do not forcibly peel off the scab.