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erythroblast
e·ryth·ro·blast [ i ríthrə blàst ] (plural e·ryth·ro·blasts)


noun 
Definition:
 
immature red blood cell: an immature red blood cell that is found in bone marrow and eventually develops into a mature red blood cell. Unlike a mature red blood cell, an erythroblast has a nucleus.

e·ryth·ro·blas·tic [ i rìthrə blástik ] adjective
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