(1) Erosion by chemical action
(2) (geology) the mechanical process of wearing or grinding something down (as by particles washing over it)
A gradual decline of something
"After the accounting scandal there was an erosion of confidence in the auditors"
(4) Condition in which the earth's surface is worn away by the action of water and wind
From , derived from , possibly via and Middle French .
The first known occurrence in English was in the 1541 translation by Robert Copland
of Guy de Chauliac
's medical text The Questyonary of Cyrurygens
. Copland used erosion to describe how ulcer
s developed in the mouth. By 1774 'erosion' was used outside medical subjects. Oliver Goldsmith
employed the term in the more contemporary geological context, in his book Natural History
, with the quote
- "Bounds are thus put to the erosion of the earth by water."
- The result of having been being worn away or eroded, as by a glacier on rock or the sea on a cliff face
- The changing of a surface by mechanical action, friction, thermal expansion or contraction, or impact.
- Destruction by abrasive action of fluids.
- One of two fundamental operations in morphological image processing from which all other morphological operations are derived.
- Loss of tooth enamel due to non-bacteriogenic chemical processes.
- A shallow ulceration or lesion, usually involving skin or epithelial tissue.