
1) Abrasion 2) Attrition 3) Detrition 4) Eating away 5) Eroding 6) Erosion 7) Erosion by friction 8) Wearing 9) Wearing away
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https://www.crosswordclues.com/clue/corrasion

1) Attrition 2) Detrition
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https://www.crosswordclues.com/clue/corrasion

Corrasion is a geomorphological term for the process of mechanical erosion of the earth`s surface caused when materials are transported across it by running water, waves, glaciers, wind or gravitational movement downslope. An example is the wearing away of rock on a river or seabed by the impact or grinding action of particles moving with the wat....
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http://en.wikipedia.org/wiki/Corrasion

• (n.) 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.
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http://thinkexist.com/dictionary/meaning/corrasion/

The wearing away of bedrock or loose sediment by mechanical action of moving agents, especially water. i.e. corrosion and abrasion
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http://www.cancaver.ca/docs/glossary.htm
Cor·ra'sion noun [ 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.
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http://www.encyclo.co.uk/webster/C/163

Grinding away of solid rock surfaces by particles carried by water, ice, and wind. It is generally held to be the most significant form of erosion in rivers. As the eroding particles are carried along they are eroded themselves (becoming rounder and smaller) due to the process of attrition
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https://www.encyclo.co.uk/local/21221

the mechanical erosion of soil and rock by the abrasive action of particles set in motion by running water, wind, glacial ice, and gravity.
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https://www.infoplease.com/dictionary/corrasion
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