erosion has definitions from the fields of geology,chemistry
1
[ noun ] (geology) the mechanical process of wearing or grinding something down (as by particles washing over it)

Used in print

(Ross E. McKinney and Howard Edde, "Aerated...)

The side slopes were coated with fiberglas matting coated with asphalt to prevent erosion .

2
[ noun ] a gradual decline of something

Examples

"after the accounting scandal there was an erosion of confidence in the auditors"

Related terms

decline

3
[ noun ] condition in which the earth's surface is worn away by the action of water and wind
4
[ noun ] (chemistry) erosion by chemical action

Synonyms

corroding corrosion

*