1. (

• abrasion ,
• attrition ,
• corrasion ,
• detrition

) erosion by friction ;

2. (

• grinding ,
• abrasion ,
• attrition ,
• detrition

) the wearing down of rock particles by friction due to water or wind or ice ;

3. (

• attrition ,
• contrition ,
• contriteness

) sorrow for sin arising from fear of damnation ;

4. (

• attrition

) a wearing down to weaken or destroy; "a war of attrition" ;

5. (

• attrition

) the act of rubbing together; wearing something down by friction ;