attrition


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Related to attrition: Attrition bias

attrition

 [ah-trĭ´shun]
the wearing away of a substance or structure (such as the teeth) in the course of normal use.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

at·tri·tion

(ă-trish'ŭn),
1. Wearing away by friction or rubbing.
2. In dentistry, physiologic loss of tooth structure caused by the abrasive character of food or by bruxism. Compare: abrasion.
[L. at-tero, pp. -tritus, to rub against, rub away]
Farlex Partner Medical Dictionary © Farlex 2012

attrition

The dropping out of a participant in a trial or study.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

at·tri·tion

(ă-trish'ŭn)
1. Wearing away by friction or rubbing.
2. In dentistry, physiologic loss of tooth structure caused by normal wear inherent in the aging process, as well as by the abrasive character of food or by bruxism.
Compare: abrasion
3. The loss of participants over the course of a study, which can create bias and threaten the internal validity of the study.
[L. at-tero, pp. -tritus, to rub against, rub away]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

at·tri·tion

(ă-trish'ŭn)
1. In dentistry, physiologic loss of tooth structure caused by normal wear inherent in the aging process, as well as by the abrasive character of food or by bruxism.
2. Wearing away by friction or rubbing.
[L. at-tero, pp. -tritus, to rub against, rub away]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Data gathered and compiled from annual practising certificates (APCs), by head of Massey University's nursing school Annette Huntington and reported by Nursing Council in its Nursing Cohort Report 2014, reveals these attrition rates.
The consequences of attrition (delayed graduation or noncompletion) in a nursing program are not just deleterious to the individual student.
A patient was counted as a case of attrition upon the first incident of failure to return in a timely manner.
Over the entire course of middle school, cumulative attrition rates--the percentage of students entering 5th grade who change schools before completing 8th grade--is similar at KIPP schools and district schools.
"We address this attrition and are able to keep most examiner positions filled by maintaining a group of financial institution specialists (examiner trainees) ready to step up when needed," Barr said.
Finally, there is one Department of Defense (DoD)--wide study of waiver status on attrition and performance, although it focuses on felony and serious waivers only.
I know of several national developers who had attrition rates as high as 60 percent, meaning six out of 10 buyers discontinue the purchase.
"Any tax reform sans proper implementation of the Lateral Attrition Act will not be able to achieve its full potential," Suarez said.
Therefore, new appointees are not subjected to attrition in their year of appointment.
and a height of 72 in., the Attrition Mill is manufactured for capacities ranging from 75-120 tph.