definition of
attrition

[1] #1 attrition n. [abrasion, corrasion, detrition] erosion by friction. wn

[2] #2 attrition n. [grinding, abrasion, detrition] the wearing down of rock particles by friction due to water or wind or ice. wn

[3] #3 attrition n. [contrition, contriteness] sorrow for sin arising from fear of damnation. wn

[4] #4 attrition n. a wearing down to weaken or destroy; "a war of attrition". wn

[5] #5 attrition n. the act of rubbing together; wearing something down by friction. wn