A chronic haemolytic anaemia resulting from interaction of the genes for sickle cell anaemia and thalassaemia. ... Origin: microcytosis + drepanocytosis ... (05 Mar 2000) ... 
Type: Term Pronunciation: mī′krō-drep′ă-nō-sī-tō′sis Definitions: 1. A chronic hemolytic anemia resulting from interaction of the genes for sickle cell anemia and thalassemia.