corrasionn.

Etymology: noun of action (on Latin type *corrāsiōn-em ), < Latin corrādĕre to corrade v.: compare abrasion.Previous versions of the OED give the stress as: coˈrrasion.

†1. The action of scraping together: see corrade v. Obsolete. rare.

ΘΚΠ

the world > space > relative position > arrangement or fact of being arranged > state of being gathered together > [noun] > gathering together > by scraping or raking

corrasion1611

1611 J. Speed Hist. Great Brit. ix. ix. 526/1 These and other importunate corrasions, were not made only to fill vp such breaches as the French affaires had produced, but also to spend in entertainments.

1611 J. Speed Hist. Great Brit. ix. ix. 528/2 The popes endlesse Corrasions from yere to yeere.

2. Geology. The local wearing away of the surface of the earth by the agency of moving air, water, glacial ice, etc., in conjunction with any matter transported by them.

ΘΚΠ

the world > the earth > structure of the earth > formation of features > erosion or weathering > [noun]

deterration1686

undermining1693

erosion1774

corrosion1781

degradation1799

denudation1811

corrasion1875

1875 J. W. Powell Explor. Colorado River (Smithsonian Inst.) xi. 152 The proof is abundant that the river cut its own channel; that the cañons are gorges of corrasion.

1877 G. K. Gilbert Rep. Geol. Henry Mts. (U.S. Geogr. & Geol. Surv. Rocky Mt. Region) 101 In corrasion the agents of disintegration are solution and mechanical wear.

1895 J. D. Dana Man. Geol. (ed. 4) 168 This corrasion tends to reduce the material to that fine impalpable state in which even slow-moving waters will transport them.

1904 T. C. Chamberlin & R. D. Salisbury Geol. (1905) I. 108 The more active and tangible processes by which surface rocks are broken up, such as wave wear, river wear and glacier wear, are processes of corrasion.

1937 S. W. Wooldridge & R. S. Morgan Physical Basis Geogr. xi. 153 The work of vertical or lateral cutting performed by a river in virtue of the abrasive power of its load is termed corrasion.

1958 J. A. Steers et al. Lake's Physical Geogr. (ed. 4) 297 Clear water does very little corrasion of solid rock.

1970 R. J. Small Study of Landforms ii. 42 Stream erosion is usually said to involve three distinct processes: downward corrasion..lateral corrasion..and headward extension.

This entry has not yet been fully updated (first published 1893; most recently modified version published online June 2021).

单词	corrasion
释义	corrasionn. Etymology: noun of action (on Latin type corrāsiōn-em ), < Latin corrādĕre* to corrade v.: compare abrasion.Previous versions of the OED give the stress as: coˈrrasion. †1. The action of scraping together: see corrade v. Obsolete. rare. ΘΚΠ the world > space > relative position > arrangement or fact of being arranged > state of being gathered together > [noun] > gathering together > by scraping or raking corrasion1611 1611 J. Speed Hist. Great Brit. ix. ix. 526/1 These and other importunate corrasions, were not made only to fill vp such breaches as the French affaires had produced, but also to spend in entertainments. 1611 J. Speed Hist. Great Brit. ix. ix. 528/2 The popes endlesse Corrasions from yere to yeere. 2. Geology. The local wearing away of the surface of the earth by the agency of moving air, water, glacial ice, etc., in conjunction with any matter transported by them. ΘΚΠ the world > the earth > structure of the earth > formation of features > erosion or weathering > [noun] deterration1686 undermining1693 erosion1774 corrosion1781 degradation1799 denudation1811 corrasion1875 1875 J. W. Powell Explor. Colorado River (Smithsonian Inst.) xi. 152 The proof is abundant that the river cut its own channel; that the cañons are gorges of corrasion. 1877 G. K. Gilbert Rep. Geol. Henry Mts. (U.S. Geogr. & Geol. Surv. Rocky Mt. Region) 101 In corrasion the agents of disintegration are solution and mechanical wear. 1895 J. D. Dana Man. Geol. (ed. 4) 168 This corrasion tends to reduce the material to that fine impalpable state in which even slow-moving waters will transport them. 1904 T. C. Chamberlin & R. D. Salisbury Geol. (1905) I. 108 The more active and tangible processes by which surface rocks are broken up, such as wave wear, river wear and glacier wear, are processes of corrasion. 1937 S. W. Wooldridge & R. S. Morgan Physical Basis Geogr. xi. 153 The work of vertical or lateral cutting performed by a river in virtue of the abrasive power of its load is termed corrasion. 1958 J. A. Steers et al. Lake's Physical Geogr. (ed. 4) 297 Clear water does very little corrasion of solid rock. 1970 R. J. Small Study of Landforms ii. 42 Stream erosion is usually said to involve three distinct processes: downward corrasion..lateral corrasion..and headward extension. This entry has not yet been fully updated (first published 1893; most recently modified version published online June 2021). < n.1611
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