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

retrieval

noun
 
/rɪˈtriːvl/
 
/rɪˈtriːvl/
[uncountable]
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  1. (formal) the process of getting something back, especially from a place where it should not be synonym recovery
    • The ship was buried, beyond retrieval, at the bottom of the sea.
    • beyond retrieval (figurative) By then the situation was beyond retrieval (= impossible to put right).
  2. (computing) the process of getting back information that is stored on a computer
    • methods of information retrieval
    Topics Computersc2
See retrieval in the Oxford Advanced American DictionarySee retrieval in the Oxford Learner's Dictionary of Academic English
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