Orthochromatic Erythroblast

**Semantic type:** Cell

**Definition:** A cell derived from a polychromatophilic erythroblast in bone marrow. It has a dense nucleus and its cytoplasm is approaching the color of a mature erythrocyte. It differentiates into a reticulocyte when it extrudes its nucleus.

**Synonyms:** - Acidophilic Erythroblast - Orthochromatophilic Erythroblast - Oxyphilic Erythroblast