9 Grammatical Pitfalls


[ri-ten-shuh n] /rɪˈtɛn ʃən/
the act of retaining.
the state of being retained.
the power to retain; capacity for retaining.
the act or power of remembering things; memory.
Origin of retention
1350-1400; Middle English retencion < Latin retentiōn- (stem of retentiō) a keeping back, equivalent to retent(us) (past participle of retinēre to retain) + -iōn- -ion
Related forms
nonretention, noun
overretention, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for retention
  • Explicit memory involves facts learned through conscious interaction, while implicit memory involves unconscious retention.
  • Water retention is key to keeping skin moisturized and supple, which can translate to fewer lines and a smoother complexion.
  • But the retention of legs is dramatic evidence that earlier whales once walked-and ran-on land.
  • Add in honeycombed shades for yet more heat retention.
  • Even so, the accountant's goals are more nuanced than simply increasing retention rates.
  • And what governments cannot buy they can often obtain through legal authority and data retention mandates.
  • But tests are usually for retention of useless facts.
  • Now, there is considerable pressure to increase retention and provide more successors.
  • It can also produce a hormone that increases sodium and water retention, which in turn elevates blood pressure.
  • Our guess: the retention of the data and how it could be used down the line, subject to minimization procedures.
British Dictionary definitions for retention


the act of retaining or state of being retained
the capacity to hold or retain liquid
the capacity to remember
(pathol) the abnormal holding within the body of urine, faeces, etc, that are normally excreted
(commerce) a sum of money owed to a contractor but not paid for an agreed period as a safeguard against any faults found in the work carried out
(pl) (accounting) profits earned by a company but not distributed as dividends; retained earnings
Word Origin
C14: from Latin retentiō, from retinēre to retain
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for retention

late 14c., from Latin retentionem (nominative retentio) "a retaining, a holding back," noun of action from past participle stem of retinere (see retain). Originally medical; mental sense is from late 15c.

Online Etymology Dictionary, © 2010 Douglas Harper
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retention in Medicine

retention re·ten·tion (rĭ-těn'shən)

  1. Involuntary withholding by the body of wastes or secretions that are normally eliminated.

  2. The holding by the body of what normally belongs in it, such as food in the stomach.

  3. An ability to recall or recognize what has been learned or experienced; memory.

  4. In dentistry, a period following orthodontic treatment when a patient wears an appliance or appliances to stabilize the teeth in their new position.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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