Necrosis

n.	1.	(Med.) The pathologic death of part of a tissue due to irreversible damage. Contrast to necrobiosis, which is a normal death of cells in a tissue. Formerly, applied primarily to death of bone tissue.
	2.	(Bot.) A disease of trees, in which the branches gradually dry up from the bark to the center.

Noun

1.

necrosis - the localized death of living cells (as from infection or the interruption of blood supply) Synonyms: gangrene, mortification, sphacelus

Pronunciation: (nuh-KROH-sis)

Dead tissue that surrounds healthy tissue in the body.

abscess, ague, anemia, ankylosis, anoxia, apnea, asphyxiation, asthma, ataxia, atrophy, backache, bleeding, blennorhea, cachexia, cachexy, caries, carrion, chill, chills, colic, constipation, convulsion, coughing, cyanosis, decay, decomposition, diarrhea, dizziness, dropsy, dry gangrene, dry rot, dysentery, dyspepsia, dyspnea, edema, emaciation, fainting, fatigue, fever, fibrillation, flux, foulness, gangrene, gas gangrene, growth, hemorrhage, high blood pressure, hydrops, hypertension, hypotension, icterus, indigestion, inflammation, insomnia, itching, jaundice, labored breathing, low blood pressure, lumbago, marasmus, moist gangrene, mortification, nasal discharge, nausea, necrotic tissue, noma, pain, paralysis, pruritus, putrefaction, putrescence, putridity, putridness, rancidity, rancidness, rankness, rash, rheum, rot, rottenness, sclerosis, seizure, shock, skin eruption, slough, sneezing, sore, spasm, sphacelation, sphacelus, spoilage, tabes, tachycardia, tooth decay, tumor, upset stomach, vertigo, vomiting, wasting