| 释义 |
erosion|ɪˈrəʊʒən|
Also 6 eroysion.
[a. Fr. erosion, a. L. ērōsiōn-em, n. of action f. ērōdĕre: see erode.]
1. a. The action or process of eroding; the state or fact of being eroded. spec. in Geol.: cf. erode v. 2.
1541R. Copland Guydon's Quest. Chirurg. 2 A ij b, Holowe vlceres..procede of two causes, that is to wete of excysyon and of eroysion. Ibid. 2 A iij b, Erosion. 1612Woodall Surg. Mate Wks. (1653) 383 By extream erosion or corrosion of Caustick Medicines. 1753Torriano Sore Throat 60 The Erosion or Rupture of the Vessels. 1774Goldsm. Nat. Hist. (1862) I. xiv. 75 Bounds are thus put to the erosion of the earth by water. 1813Thomson Lect. Inflamm. 369 The phenomena which it [ulcerative absorption] exhibits were denominated erosion by Galen. 1836Todd Cycl. Anat. I. 450/2 The erosion or absorption of the cartilages. 1851–9Darwin Geol. in Adm. Man. Sci. Enq. 294 Where ranges of cliffs exist the marks of the erosion of the waves may sometimes be expected to occur. 1854Woodward Mollusca iv. (1856) 41 We can often recognise fresh-water shells, by the erosion of those parts where the epidermis was thinnest.
b. An instance of erosion.
1710T. Fuller Pharm. Extemp. 133 It [i.e. the Electuary] is very profitable against..erosions of the Mouth. 1725Bradley Fam. Dict., Ulcer, a Solution of Continuity made by an Erosion of the soft Parts. 1744Berkeley Siris §21 Ulcerous erosions of the inward parts. 1880Kinglake Crimea VI. viii. 184 The tumours, the erosions of the gums.
2. transf. and fig. Also concr.
1804W. Taylor in Ann. Rev. II. 352 The expenders of rents are the most unproductive and useless class of citizens; their income is a fairer object of erosion, than that of the industrious..classes. 1817H. T. Colebrooke Algebra 311 The erosion being subtracted from both diameters, etc. 1889Sat. Rev. 23 Mar. 331/1 About twenty per cent. of the Government majority has disappeared by the natural erosion of bye-elections.
3. attrib., as erosion cycle, erosion territory; erosion theory: the theory which regards the contour of the land as due to superficial denudation rather than to subterranean agencies.
1879Le Conte Elem. Geol. 251 Erosion inequalities, once commenced, tend to increase. 1937Geogr. Jrnl. XC. 376 Erosion-territory of the Great Ice sheet. 1946L. D. Stamp Brit. Struct. & Scenery v. 37 It may be said that land-forms depend..thirdly on the phase or stage within the erosion cycle. |