Hypertext Webster Gateway: "corrasion"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Corrasion \Cor*ra"sion\ (k?r-r?"zh?n), n. [See {Corrade}.]
(Geol.)
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.
From WordNet (r) 1.7 (wn)
corrasion
n : erosion by friction [syn: {abrasion}, {attrition}, {detrition}]
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