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The smallest of the nucleated precursors of the erythrocyte; slightly larger than a mature adult erythrocyte. Also known as acidophilic erythroblast; arthochromatic erythroblast; eosinophilic erythroblast; karyocyte; metakaryocyte; metanitricyte; metarubricyte.



one of the stages in the maturation of erythrocytes in the bone marrow of mammals and man. The cytoplasm of a developing normoblast gradually becomes enriched with hemoglobin and the nucleus degenerates, resulting in the emergence of a mature erythrocyte.

References in periodicals archive ?
4) Di Guglielmo described a second variant characterized by a pure normoblastic proliferation, acute erythremia, subsequently referred to by others as true erythroleukemia, minimally differentiated erythroleukemia, and pure erythroid leukemia.
Peripheral blood: Severe neutropenia, normoblastic anemia with reticulocytopenia and mild thrombocytopenia.
Modest anemia may occur from hemolysis and reversible normoblastic maturation arrest.