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Definition of retention noun from the Oxford Advanced Learner's Dictionary

retention

noun
 
/rɪˈtenʃn/
 
/rɪˈtenʃn/
[uncountable] (formal)
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  1. the action of keeping something rather than losing it or stopping it
    • The company needs to improve its training and retention of staff.
  2. the action of keeping liquid, heat, etc. inside something rather than letting it escape
    • Eating too much salt can cause fluid retention.
    • the importance of energy conservation and heat retention
  3. the ability to remember things
    • Visual material aids the retention of information.
  4. see also retain
    Word Originlate Middle English (denoting the power to retain something): from Old French, from Latin retentio(n-), from retinere ‘hold back’, from re- ‘back’ + tenere ‘hold’.
See retention in the Oxford Advanced American DictionarySee retention in the Oxford Learner's Dictionary of Academic English
hopefully
adverb
 
 
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