[nuh-kroh-sis, ne-]
death of a circumscribed portion of animal or plant tissue.

1655–65; < Neo-Latin < Greek nékrōsis mortification, state of death. See necr(o)-, -osis

necrotic [nuh-krot-ik, ne-] , adjective
postnecrotic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
necrosis (nɛˈkrəʊsɪs)
1.  the death of one or more cells in the body, usually within a localized area, as from an interruption of the blood supply to that part
2.  death of plant tissue due to disease, frost, etc
[C17: New Latin from Greek nekrōsis, from nekroun to kill, from nekros corpse]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

"death of bodily tissue," 1665, from Gk. nekrosis "a becoming dead, state of death," from nekroun "make dead," from nekros "dead body" (see necro-).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

necrosis ne·cro·sis (nə-krō'sĭs, ně-)
n. pl. ne·cro·ses (-sēz')
Death of cells or tissues through injury or disease, especially in a localized area of the body.

ne·crot'ic (-krŏt'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
necrosis   (nə-krō'sĭs)  Pronunciation Key 
The death of cells or tissues from severe injury or disease, especially in a localized area of the body. Causes of necrosis include inadequate blood supply (as in infarcted tissue), bacterial infection, traumatic injury, and hyperthermia.

necrotic adjective (nə-krŏt'ĭk)
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica


death of a circumscribed area of plant or animal tissue as a result of an outside agent; natural death of tissue is called necrobiosis. Necrosis may follow a wide variety of injuries, both physical (cuts, burns, bruises) and biological (effects of disease-causing agents). The sign of necrosis-dead tissue-is called a lesion; it is often of diagnostic value. Necrosis is brought about by intracellular enzymes that are activated upon injury and proceed to destroy damaged cells

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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