资料来源 : pyDict

染色性缺乏; 色素缺乏

资料来源 : WordNet®

achromasia
     n : unnatural lack of color in the skin (as from bruising or
         sickness or emotional distress) [syn: {lividness}, {lividity},
          {luridness}, {paleness}, {pallidness}, {pallor}, {wanness}]