attrition
1. [ noun ] a wearing down to weaken or destroy
Examples:

"a war of attrition"

Related terms: decrease
2. [ noun ] sorrow for sin arising from fear of damnation
Synonyms: contrition contriteness
Related terms: sorrow
3. [ noun ] (physics) the wearing down of rock particles by friction due to water or wind or ice
Synonyms: abrasion detrition grinding
Related terms: friction abrade
4. [ noun ] (geology) erosion by friction
Synonyms: corrasion detrition abrasion
Related terms: erosion abrade
5. [ noun ] the act of rubbing together; wearing something down by friction
Related terms: friction
Similar spelling:   attritional
  attrited