A leukocyte that has granules in its cytoplasm. A type of white Blood cell that attacks and destroys foreign substances. These are leukocytes which have specific granules. The three different types of granulocytes have different types of specific granules. Granulocytes are spherical in shape, contain nuclei and include neutrophils, eosinophils, and basophils. These cells are part of the formed elements of whole Blood.