Term Name:	primitive reticulocyte
Synonyms:	megalocyte
Definition:	A primitive erythrocyte that has undergone enucleation. This cell type is 3-6 fold bigger than the fetal derived erythrocytes that they co-circulate with during fetal development. Expresses epsilon-gamma hemoglobin chains.
Ontology:	Cell Ontology [CL:0002356]