macrophage

noun
mac·ro·phage | \ˈma-krə-ˌfāj \

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 (such as bacteria and viruses), and serves as an antigen-presenting cell — compare histiocyte

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Other Words from macrophage

macrophagic \ˌma-krə-ˈfa-jik \ adjective

Examples of macrophage in a Sentence

Recent Examples on the Web

Cancer cells avoid destruction by macrophages in two ways. Martin Finucane, BostonGlobe.com, "Brigham and Women’s researchers take another step toward using immune system to fight cancer," 2 July 2018 Her subject was macrophages, big, hungry cells on the front lines of the defense. Judith Shulevitz, New York Times, "Is Our Obsession With Wellness Doing Us In?," 11 June 2018 The initial immune response involves cells of the body’s innate immune system, such as macrophages and neutrophils. Laura Haynes, Washington Post, "How the flu hijacks your body to make you feel so wretched," 17 Feb. 2018 The initial immune response involves cells of the body’s innate immune system, such as macrophages and neutrophils. Laura Haynes, Newsweek, "Here's How The Flu Attacks Your Body—And Why It's So Painful," 17 Feb. 2018 First, despite various, non-lethal efforts to kill off the cells that contained the tattoo, the macrophages worked so fast to engulf the color that the ink remained in tact. refinery29.com, "Scientists Just Discovered A Huge Breakthrough For Tattoo Removal," 7 Mar. 2018 As a tattoo is given, macrophages descend to capture invading ink. Steph Yin, New York Times, "The Cells That Eat, Regurgitate and Eat Your Tattoos Again," 6 Mar. 2018 The initial immune response involves cells of the body’s innate immune system, such as macrophages and neutrophils. Laura Haynes, Washington Post, "How the flu hijacks your body to make you feel so wretched," 17 Feb. 2018 The initial immune response involves cells of the body’s innate immune system, such as macrophages and neutrophils. Laura Haynes, Newsweek, "Here's How The Flu Attacks Your Body—And Why It's So Painful," 17 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'macrophage.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of macrophage

1887, in the meaning defined above

History and Etymology for macrophage

International Scientific Vocabulary

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Last Updated

26 Aug 2018

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Time Traveler for macrophage

The first known use of macrophage was in 1887

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More Definitions for macrophage

macrophage

noun
mac·ro·phage | \ˈmak-rə-ˌfāj, -ˌfäzh \

Medical 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 — see histiocyte, mononuclear phagocyte system

Other Words from macrophage

macrophagic \ˌmak-rə-ˈfaj-ik \ adjective

More from Merriam-Webster on macrophage

Britannica.com: Encyclopedia article about macrophage

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