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apoptosis

[ap-uh-toh-sis, ap-uh p‐] /ˌæp əˈtoʊ sɪs, ˌæp əp‐/
noun
1.
a normal, genetically regulated process leading to the death of cells and triggered by the presence or absence of certain stimuli, as DNA damage.
Also called programmed cell death.
Related forms
apoptotic [ap-uh-tot-ik, ap-uh p‐] /ˌæp əˈtɒt ɪk, ˌæp əp‐/ (Show IPA), adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for apoptosis
  • In extreme cases of failure it can even trigger apoptosis, or cellular suicide.
  • We see the evolution of higher rates of apoptosis as a way to regulate the size and number of propagules produced.
British Dictionary definitions for apoptosis

apoptosis

/ˌæpəpˈtəʊsɪs/
noun
1.
(biology) the programmed death of some of an organism's cells as part of its natural growth and development Also called programmed cell death
Word Origin
C20: from Greek: a falling away, from apo- + ptōsis a falling
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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apoptosis in Science
apoptosis
  (āp'əp-tō'sĭs, āp'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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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apoptosis in Culture
apoptosis [(ap-uhp-toh-sis)]

The programmed death of a cell. Scientists believe that this process is governed by chemical signals a given cell receives from its neighbors.

Note: It is thought some forms of cancer may result when this process of cell death is somehow interrupted, allowing cells to grow unchecked, with the result being a cancerous tumor.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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