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abrasion

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abrasion

In earth science, type of erosion in which rock fragments scrape and grind away a surface. It is also known as corrasion. The rock fragments may be carried by rivers, wind, ice, or the sea. Striations, or grooves, on rock surfaces are common abrasions, caused by the scratching of rock by debris carried in glacier ice.

abrasion

In medicine, another term for a graze or other minor lesion where the skin surface is worn away by friction.



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? Mentioned in ? References in classic literature
 
At other places the banks were banded with great veins of iron ore, laid bare by the abrasion of the river.
The sudden arrest of his motion, the abrasion of one of his hands on the gravel, restored him, and he wept with delight.
The ring-finger had suffered a slight abrasion, and the stain of the blood was still visible and unchanged after forty-one years.
 
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