mononuclear phagocyte system is a noun meaning "a widely distributed system of free and fixed macrophages derived from bone marrow". It carries one recorded sense.
a widely distributed system of free and fixed macrophages derived from bone marrow
Definitions, synonyms and semantic relations for mononuclear phagocyte system come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.