だいおう 大黄 LinksSentence search for 大黄Sentence search for だいおうSentence search for ダイオウKanji details for 大 and 黄Edit in JMdict Noun1. Chinese rhubarb (Rheum officinale); rhubarb root (used in traditional Chinese medicine)Place2. DaiouOther formsダイオウ Discussions Log in to talk about this word.