Definition of macrophage
: a phagocytic tissue cell of the immune system that may be fixed or freely motile, is derived from a monocyte, functions in the destruction of foreign antigens (as bacteria and viruses), and serves as an antigen-presenting cell — compare histiocyte
Origin of macrophage
International Scientific Vocabulary
First Known Use: 1890
Medical Definition of macrophage
Seen and Heard
What made you want to look up macrophage? Please tell us where you read or heard it (including the quote, if possible).