Attrition may refer to *

Attrition warfare Attrition warfare is a form of military strategy in which one side attempts to gradually wear down its opponent to the point of collapse by inflicting continuous losses in personnel, materiel, and morale. The term ''attrition'' is derived fro ...

, the military strategy of wearing down the enemy by continual losses in personnel and material **

War of Attrition The War of Attrition (; ) involved fighting between Israel and Egypt, Jordan, the Palestine Liberation Organisation (PLO) and their allies from 1967 to 1970. Following the 1967 Six-Day War, no serious diplomatic efforts were made to resolve t ...

, fought between Egypt and Israel from 1968 to 1970 **

War of attrition (game) In game theory, the war of attrition is a dynamic timing game in which players choose a time to stop, and fundamentally trade off the strategic gains from outlasting other players and the real costs expended with the passage of time. Its precise o ...

, a model of aggression in game theory *Loss of personnel by

withdrawal (military) A tactical withdrawal or retreating defensive action is a type of military operation, generally meaning that retreating forces draw back while maintaining contact with the enemy. A withdrawal may be undertaken as part of a general retreat, to ...

* Attrition (research), loss of participants during an experiment. *

Attrition (dental) Dental attrition is a type of tooth wear caused by tooth-to-tooth contact, resulting in loss of tooth tissue, usually starting at the Dental terminology, incisal or Dental terminology, occlusal surfaces. Tooth wear is a physiological process and ...

, loss of tooth structure by mechanical forces from opposing teeth *

Attrition (erosion) Attrition is the process of erosion that occurs during Rock (geology), rock collision and transportation. The transportation of sediment chips and smooths the surfaces of bedrock; this can be through water or wind. Rocks undergoing attrition erosion ...

, the wearing away of rocks in rivers or the sea * ''Attrition'' (film), also known as ''Final Mission'', 2018 american film *

Imperfect contrition In Christianity, contrition or contriteness (, i.e. a breaking of something hardened) is repentance for sins one has committed. The remorseful person is said to be ''contrite''. A central concept in much of Christianity, contrition is regarded ...

, also known as attrition, in Catholic theology *

Customer attrition Customer attrition, also known as customer churn, customer turnover, or customer defection, is the loss of clients or customers. Companies often use customer attrition analysis and customer attrition rates as one of their key business metrics (alo ...

, loss of business clients or customers *

Language attrition Language attrition is the process of decreasing proficiency in or losing a language. For first or native language attrition, this process is generally caused by both isolation from speakers of the first language ("L1") and the acquisition and use o ...

, loss of first language ability by multilingual speakers ** Second language attrition, loss of second language ability

Proper names

* Attrition (band), an electronic music band * Attrition (website), a security website

Proper names

See also