hu·mec·tant /hjuˈmɛktənt/
  含水加入劑; 持濕劑; 溼潤劑
  hu·mec·tant /hjuˈmɛktənt/ 形容詞
  致濕的,致濕物,稀釋劑
  Hu·mec·tant a.  Diluent. -- n. A diluent drink or medicine. [Obs.]
  ◄ ►
  humectant
       n : any substance that is added to another substance to keep it
           moist