NCIt definition : Large, phagocytic mononuclear leukocytes produced in the vertebrate bone marrow and
released into the blood; contain a large, oval or somewhat indented nucleus surrounded
by voluminous cytoplasm and numerous organelles.;
Alternative definition : NCI-GLOSS: A type of immune cell that is made in the bone marrow and travels through
the blood to tissues in the body where it becomes a macrophage. Macrophages surround
and kill microorganisms, ingest foreign material, remove dead cells, and boost immune
responses. A monocyte is a type of white blood cell and a type of phagocyte.; CDISC: A large, phagocytic mononuclear leukocyte produced in the vertebrate bone marrow
and released into the blood; containing a large, oval or somewhat indented nucleus
surrounded by voluminous cytoplasm and numerous organelles.;