Definition: Apoptosis, literally meaning "the process by which cells die," describes a vital cellular process in which cells are removed from the body in a natural way without causing permanent damage or death. Definition: - Apoptosis: The complete or partial loss of cell viability (cell death) without causing permanent physical damage to living tissue. This is an essential mechanism for maintaining homeostasis, regulating cellular homeostasis, and facilitating tissue repair following injury or disease. - Definition in English: In the context of genetics, apoptosis refers to a process where cells die by their own mechanisms without being capable of regenerating. Apoptotic processes are crucial for maintaining the integrity and function of tissues, organs, and even entire organisms, which is why they are so closely tied to the cell cycle. - Definition in Chinese: 腐败 (bāo fǔ) refers to a process through which cells die without causing permanent damage or death. This is an important mechanism for maintaining homeostasis, regulating cellular homeostasis, and facilitating tissue repair following injury or disease. Apoptosis can occur naturally from the cell cycle, in response to stress signals, or in response to programmed cell death during tumor development.

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