attrition

nouns

erosion by friction
abrasion, attrition, corrasion, detrition
is derived from
attritional
the wearing down of rock particles by friction due to water or wind or ice
abrasion, attrition, detrition, grinding
is derived from
attritional
sorrow for sin arising from fear of damnation
attrition, contriteness, contrition
a wearing down to weaken or destroy
"a war of attrition"
attrition
is derived from
attritional
is a type of (narrower)
a change downward
"there was a decrease in his temperature as the fever subsided"; "there was a sharp drop-off in sales"
decrease, drop-off, lessening
the act of rubbing together; wearing something down by friction
attrition
is derived from
attritional
is a type of (narrower)
effort expended in moving one object over another with pressure
detrition, friction, rubbing