elliptocytosis /ilip′tōsītō″sis/ [Gk, elleipsis + kytos + osis, condition] , an abnormal condition of the blood characterized by increased numbers of elliptocytes. Less than 15% of the red blood cells appear in this form in normal blood; modest increases occur in a variety of anemias, including a rare congenital disorder, hereditary elliptocytosis. Also called ovalocytosis. Compare spherocytosis. See also acanthocytosis, congenital nonspherocytic hemolytic anemia, sickle cell anemia, spherocytic anemia.
