Word Study
corrasion
CIDE DICTIONARY
corrasion, n. [See Corrade.].
The erosion of the bed of a stream by running water, principally by attrition of the detritus carried along by the stream, but also by the solvent action of the water. [1913 Webster]
OXFORD DICTIONARY
corrasion, n. Geol. erosion of the earth's surface by rock material being carried over it by water, ice, etc.
Etymology
L corradere corras- scrape together (as COM-, radere scrape)
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