| mononuclear | Having only one nucleus; used especially in reference to blood cells. (05 Mar 2000) |
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| mononuclear phagocyte | <haematology> Monocytes and their differentiated products, macrophages. Mononuclear cells are leucocytes other than polymorphonuclear cells and include lymphocytes. (18 Nov 1997) |
| mononuclear phagocyte system | A widely distributed collection of both free and fixed macrophages derived from bone marrow precursor cells by way of monocytes; their substantial phagocytic activity is mediated by immunoglobulin and the serum complement system. In both connective and lymphoid tissue, they may occur as free and fixed macrophages; in the sinusoids of the liver, as Kupffer cells; in the lung, as alveolar macrophages; and in the nervous system, as microglia. Synonym: system of macrophages. (05 Mar 2000) |
| 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) |
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