corrosion

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
  1. noun
    erosion by chemical action
    synonyms: corroding, erosion
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    types:
    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
  2. noun
    a state of deterioration in metals caused by oxidation or chemical action
    see moresee less
    type of:
    deterioration, impairment
    a symptom of reduced quality or strength
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