pronormoblast

pronormoblast /pro·nor·mo·blast/ (-nor´mo-blast) term often considered a synonym of proerythroblast, but sometimes limited to one in a normal course of erythrocyte maturation, as opposed to a promegaloblast.

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pro·nor·mo·blast (pr-nôrm-blst)

n.

The first of four stages in development of the normoblast. Also called proerythroblast, rubriblast.

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pronormoblast

the earliest erythrocyte precursor, having a relatively large nucleus containing several nucleoli, surrounded by a small amount of cytoplasm (see also normoblast). Called also proerythroblast and rubriblast.