A type of white blood cell, also called a granular leukocyte, filled with granules of toxic chemicals that can digest microorganisms. Basophils, as well as other types of white blood cells, are responsible for the symptoms of allergy.
A granular leukocyte with an irregularly shaped, relatively pale-staining nucleus with cytoplasm that contains coarse bluish-black granules of variable size. Basophils contain vasoactive amines, such as histamine and serotonin, which are released on appropriate stimulation.
A multinucleated leucocyte characterized by cytoplasmic granules that release histamine and other hypersensitivity response effectors.