定心 dìngxīn to feel at ease Origin Definitions Defs Strokes Stroke Words Sentences Sents 定心丸 dìngxīnwán tranquilizer A pill used to nourish the blood and calm the nerves吃了定心丸 chīledìngxīnwán to feel reassured to feel at ease or relieved after receiving a guarantee or piece of good news