硬こう膏こうこうこうMeanings1nounplaster; adhesive plaster; medical plasterA medical term for a type of bandage or dressing that adheres to the skin, often containing medication. Contrasts with 軟膏 (ointment).See also: 軟膏医い師しは傷きず口ぐちに硬こう膏こうを貼はった。The doctor applied a plaster to the wound.