Dictionary of Cancer Terms
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WBC
A type of immune cell. Most WBCs are made in the bone marrow and are found in the blood and lymph tissue. WBCs help the body fight infections and other diseases. Granulocytes, monocytes, and lymphocytes are WBCs. Also called leukocyte and white blood cell.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.