| 释义 |
‖ necrosis|nɛˈkrəʊsɪs|
[mod.L., a. Gr. νέκρωσις deadness, f. νεκροῦν to kill, mortify, f. νεκρός corpse: see -osis.]
1. Path. The death of a circumscribed piece of tissue; mortification, esp. of the bones.
1665Needham Med. Medicinæ 410 Which congeled portions cause a Necrosis or inward Mortification. 1693tr. Blancard's Phys., Dict. (ed. 2), Necrosis, a black and blue Mark in any part. 1706Phillips (ed. Kersey), Necrosis... In Surgery, a perfect Mortification of the soft and hard Parts of the Body. 1799Med. Jrnl. II. 382 Mr. Russell, who published, in 1794, a Practical Essay on Necrosis. 1805Ibid. XIV. 300 At the first sight I suspected it to be a Necrosis. 1830R. Knox Béclard's Anat. 236 The repairing of bones when divided or affected with necrosis. 1876J. S. Bristowe Th. & Pract. Med. (1878) 369 Cases in which the cartilages are in a state of necrosis.
b. attrib. and Comb., as necrosis-producing adj.; necrosis forceps, an instrument for removing portions of diseased bone (Knight, 1884).
1891Daily News 16 Jan. 2/4 Wherever tubercle bacilli..have already impregnated their surroundings with the necrosis-producing substance.
2. Bot. (See quots.)
1866Treas. Bot. 780/1 Necrosis. Canker. A drying and dying of the branch of a tree, beginning with the bark and eating gradually inwards. 1901H. M. Ward Disease in Plants xxvi. 240 Necrosis.—This is a general term for cases where the tissues gradually turn brown or black in patches which die and dry up... Necrosis is often due to frost. 1951L. L. Pyenson Elem. Plant Protection xvi. 302 Necrosis. The browning and death of tissues is a characteristic effect of some viruses. Ibid. 303 Internal symptoms may show a necrosis of the phloem. 1958U.S. Dept. Agric. Yearbk. 1957 763/1 Necrosis. Death associated with discoloration and dehydration of all or parts of plant ograns, such as leaves.
†3. (See quot. and Coloss. iii. 5.) Obs. rare—0.
1706Phillips (ed. Kersey), Necrosis, (in Divinity) a mortifying of corrupt Affections. |