mononuclear phagocyte system

Medical Dictionary

mononuclear phagocyte system n.

Abbr. MPS 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 by the serum complement system.

The American Heritage® Stedman's Medical Dictionary
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WordNet
mononuclear phagocyte system

noun
a widely distributed system of free and fixed macrophages derived from bone marrow 
WordNet® 3.0, © 2006 by Princeton University.
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