Apoptosis meaning

ăpəp-tōsĭs, ăpə-tō-
A natural process of self-destruction by degradative enzymes in certain cells, such as epithelial cells and erythrocytes, that are genetically programmed to have a limited lifespan or are damaged, as by irradiation or toxic drugs.
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A natural cytolytic process in which cells disintegrate and other cells nearby use the resulting cell parts.
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A natural process of self-destruction by degradative enzymes in certain cells, such as epithelial cells and erythrocytes, that are genetically programmed to have a limited lifespan or are damaged, as by irradiation or toxic drugs.
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A natural process of self-destruction in certain cells, such as epithelial cells and erythrocytes, that are genetically programmed to have a limited life span or are damaged. Apoptosis can be induced either by a stimulus, such as irradiation or toxic drugs, or by removal of a repressor agent. The cells disintegrate into membrane-bound particles that are then eliminated by phagocytosis.
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(biology, cytology) A process of programmed cell death by which cells undergo an ordered sequence of events which lead to death of the cell, as occurs during growth and development of the organism, as a part of normal cell aging, or as a response to cellular injury. [from 20th c.]
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Origin of apoptosis

  • From Ancient Greek ἀπόπτωσις (apoptōsis, “a falling off"), from ἀπό (apo, “away from") + πτῶσις (ptōsis, “falling").

    From Wiktionary