| leukocytes | Cells that help the body fight infections and other diseases. Also called white blood cells (wbcs). (12 Dec 1998) |
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| leukocytes, mononuclear | Mature lymphocytes and monocytes transported by the blood to the body's extravascular space. They are morphologically distinguishable from mature granulocytic leukocytes by their large, non-lobed nuclei and lack of coarse, heavily stained cytoplasmic granules. (12 Dec 1998) |