Definition of CSF (colony-stimulating factor)

CSF (colony-stimulating factor): A laboratory-made agent similar to a substance in the body that stimulates the production of blood cells.

The colony-stimulating factors (CSFs) include granulocyte colony-stimulating factor (G-CSF) and granulocyte-macrophage colony-stimulating factor (GM-CSF).

Treatment with colony-stimulating factors can help the blood-forming tissue recover from the effects of chemotherapy and radiation therapy.