noun
macrophage
Biology term for a type of white blood cell that engulfs and digests foreign particles, dead cells, and pathogens.
マクロファージは体内の異物を食べる免疫細胞です。
Macrophages are immune cells that eat foreign substances in the body.
食細胞 is a broader Japanese term for phagocyte, while マクロファージ specifically refers to macrophages, a type of phagocyte.
Loanword from English 'macrophage', ultimately from Greek 'makros' (large) and 'phagein' (to eat).