normoblast

(redirected from Orthochromatic normoblast)
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normoblast

 [nor´mo-blast]
a nucleated precursor cell in the erythrocytic series, specifically one in a normal course of erythrocyte maturation, as opposed to a megaloblast. The four developmental stages of the series are called pronormoblasts or proerythroblasts, basophilic normoblasts or erythroblasts, polychromatophilic (or polychromatic) normoblasts or erythroblasts, and orthochromatic normoblasts or erythroblasts. adj., adj normoblas´tic.

nor·mo·blast

(nōr'mō-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]

nor·mo·blast

(nōr'mō-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 also: erythroblast
[normo- + G. blastos, sprout, germ]

normoblast

A nucleated red blood cell precursor showing the features of normal red cell development, as distinct from those of the MEGALOBLAST.

nor·mo·blast

(nōr'mō-blast)
A nucleated red blood cell, the immediate precursor of a normal erythrocyte in humans.
[normo- + G. blastos, sprout, germ]