plural, plural form - the form of a word that is used to denote more than one. sunrise industry - a new industry that is expanding rapidly (especially telecommunications or electronics) sampling rate - (telecommunication) the frequency of sampling per unit time.
Leukocytes (white blood cells). The WBCs are divided into two groups: (1) granular leukocytes, containing distinctive cytoplasmic granules, including neutrophils, eosinophils and basophils and (2) agranular leukocytes, without granules, including monocytes and lymphocytes.
White blood cells are produced by bone marrow within bone. Some white blood cells mature in the lymph nodes, spleen, or thymus gland. The life span of mature leukocytes ranges from about a few hours to several days. Lymphocytes-After neutrophils, lymphocytes are the most common type of white blood cell. 2  These cells are spherical in shape with large nuclei and very little cytoplasm. 3  There are three main types of lymphocytes: T cells, B cells, and natural killer cells.