Read Edit View history 褪黑素 tuìhēisù melatonin Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 褪黑素 tuìhēisù melatonin noun · (biochemistry) melatonin 很多人通过服用褪黑素来改善睡眠质量。 Edit Delete References Add reference No references for this word.