Source : WordNet®

crescent-cell anemia
     n : a congenital form of anemia occurring mostly in blacks;
         characterized by abnormal blood cells having a crescent
         shape [syn: {sickle-cell anemia}, {sickle-cell anaemia},
         {sickle-cell disease}, {crescent-cell anaemia}, {drepanocytic
         anemia}, {drepanocytic anaemia}]