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apoptosis
[ ap-uh-toh-sis, ap-uhp‑ ]
noun
- a normal, genetically regulated process leading to the death of cells and triggered by the presence or absence of certain stimuli, as DNA damage.
apoptosis
/ ˌæpəpˈtəʊsɪs /
noun
- biology the programmed death of some of an organism's cells as part of its natural growth and development Also calledprogrammed cell death
apoptosis
/ ăp′əp-tō′sĭs,ăp′ə-tō′- /
- 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.
- Also called programmed cell death
apoptosis
- The programmed death of a cell . Scientists believe that this process is governed by chemical signals a given cell receives from its neighbors.
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Notes
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Other Words From
- ap·op·tot·ic [ap-, uh, -, tot, -ik, ap-, uh, p‑], adjective
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Word History and Origins
Origin of apoptosis1
1970–75; New Latin < Greek apόptōsis a falling off, equivalent to apo- apo- ( def ) + ptōsis ptosis ( def )
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Word History and Origins
Origin of apoptosis1
C20: from Greek: a falling away, from apo- + ptōsis a falling
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Example Sentences
THC and cannabidiol both induce apoptosis in leukemic cell lines.
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