detrition vs grinding

detrition and grinding both are nouns.

Word	Noun	Adjective	Verb	Adverb
detrition	Yes	No	No	No
grinding	Yes	No	No	No

As nouns, detrition and grinding are synonyms defined as:

detrition and grinding: the wearing down of rock particles by friction due to water or wind or ice

Other synonyms of detrition include abrasion, attrition.

detrition (noun)	grinding (noun)
effort expended in moving one object over another with pressure	a harsh and strident sound (as of the grinding of gears)
the wearing down of rock particles by friction due to water or wind or ice	material resulting from the process of grinding
erosion by friction	the wearing down of rock particles by friction due to water or wind or ice