'Detrition' definitions:

Definition of 'detrition'

noun

Erosion by friction [syn: abrasion, attrition, corrasion, detrition]

noun

The wearing down of rock particles by friction due to water or wind or ice [syn: grinding, abrasion, attrition, detrition]

noun

Effort expended in moving one object over another with pressure [syn: friction, detrition, rubbing]

From: GCIDE

Detrition \De*tri"tion\, n. [LL. detritio. See Detriment.] A wearing off or away. [1913 Webster]
Phonograms which by process long-continued detrition have reached a step of extreme simplicity. --I. Taylor (The Alphabet). [1913 Webster]