A condition resembling leukemia in which the erythropoietic tissue is affected in addition to the leukopoietic tissue.
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eryth·ro·leu·ko·sis or chiefly Brit eryth·ro·leu·co·sis -lü-'kō-səs n, pl -ko·ses or chiefly Brit -co·ses -.sēz a leukemic disease of poultry
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eryth·ro·leu·ko·sis (ə-rith″ro-loo-koґsis) erythroblastosis (def. 2).Medical dictionary. 2011.