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Medical Term:


Pronunciation: nor'mo-blast


A nucleated red blood cell, the immediate precursor of a normal erythrocyte in humans. Its four stages of development are: 1) pronormoblast, 2) basophilic normoblast, 3) polychromatic normoblast, and 4) orthochromatic normoblast

See: erythroblast

[normo- + G. blastos, sprout, germ]

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.