Corrosion is the process by which something deteriorates because of oxidation, a chemical action that creates oxides that flake away from the base.

When you see a rusty, shoddy looking car, corrosion is the culprit. Although the word is most often associated with the physical breakdown of a metal through rusting, the erosion of rock by wind and water is a form of corrosion. The word can also be applied to other situations, like the corrosion of a once-strong friendship. There could be corrosion of relations between two countries. Whenever something's being worn down or eaten away, you can call it corrosion.

Definitions of corrosion

n erosion by chemical action

corroding, erosion
indentation, pitting, roughness
the formation of small pits in a surface as a consequence of corrosion
rust, rusting
the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water
Type of:
chemical action, chemical change, chemical process
(chemistry) any process determined by the atomic and molecular composition and structure of the substances involved

n a state of deterioration in metals caused by oxidation or chemical action

Type of:
deterioration, impairment
a symptom of reduced quality or strength

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