autophagy
noun [ U ] biology specialized uk/ɔːˈtɒf.ə.dʒi/ us/ɑːˈtɑː.fə.dʒi/
细胞自噬（作用），自体吞噬
a natural process in which the body breaks down and absorbs its own tissue or cells
Through autophagy, the cell isolates and then devours bad things inside it - like damaged bits of mitochondria. 通过自体吞噬，细胞将内部的“坏东西”孤立起来并且吃掉——比如受损的少量粒线体。