macrophage

noun

Any of the large phagocytic cells of the reticuloendothelial system.

noun

A very large phagocyte or wandering amœboid cell that devours other cells. Macrophages develop from small lymphocytes and are found in the lymphoid tissues of the alimentary canal.

noun

A small phagocyte, or wandering leucocyte, which engulfs or devours other cells, bacteria, etc.: opposed to macrophage.

noun

A large phagocyte.

noun

A white blood cell that phagocytizes necrotic cell debris and foreign material, including viruses, bacteria, and tattoo ink. It presents foreign antigens on MHC II to lymphocytes. Part of the innate immune system.

noun

a large phagocyte; some are fixed and other circulate in the blood stream