NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,380 terms related to cancer and medicine.

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granular leukocyte
(GRAN-yoo-lur LOO-koh-site)
A type of immune cell that has granules (small particles) with enzymes that are released during infections, allergic reactions, and asthma. Neutrophils, eosinophils, and basophils are granular leukocytes. A granular leukocyte is a type of white blood cell. Also called granulocyte, PMN, and polymorphonuclear leukocyte.