1. A rubbing away or wearing down by friction.
2. A gradual diminution in number or strength because of constant stress.
3. A gradual, natural reduction in membership or personnel, as through retirement, resignation, or death.
4. Repentance for sin motivated by fear of punishment rather than by love of God.

[Middle English attricioun, regret, breaking, from Old French attrition, abrasion, from Late Latin attrītiō, attrītiōn-, act of rubbing against, from Latin attrītus, past participle of atterere, to rub against : ad-, against; see ad- + terere, to rub.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.