hematopoiesis

n. formation of blood cells, development of blood cells (Medicine)

Haematopoiesis (from Ancient Greek: haima blood; poiesis to make) (or hematopoiesis in the United States; sometimes also haemopoiesis or hemopoiesis) is the formation of blood cellular components. All of the cellular components of the blood are derived from haematopoietic stem cells. The term multipotent refers to the ability of a cell to become several different types of cell (but not all types in a germ layer). Multipotent haematopoietic cells can become any type of cell in the blood system. The multipotent cells determine what type of cell to become, or differentiate, in a step-wise fashion.
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Hematopoiesis /he·ma·to·poi·e·sis/ the formation and development of blood cells. extramedullary hematopoiesis that occurring outside the bone [more]Hematopoiesis - Community and Resources

Noun
1. the formation of blood cells in the living body (especially in the bone marrow)
(synonym) haematopoiesis, hemopoiesis, haemopoiesis, hemogenesis, haemogenesis, hematogenesis, haematogenesis, sanguification
(hypernym) organic process, biological process

The formation and development of blood cells.