Definition of isolation noun from the Oxford Advanced American Dictionary

      

    isolation

     noun
    noun
    NAmE//ˌaɪsəˈleɪʃn//
     
    [uncountable]
     
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  1. 1 the act of separating someone or something; the state of being separate geographical isolation an isolation hospital/ward (= for people with infectious diseases) isolation (from somebody/something) The country has been threatened with complete isolation from the international community unless the atrocities stop. the isolation of the polio virus
  2. 2isolation (from somebody/something) the state of being alone or lonely Many unemployed people experience feelings of isolation and depression.
  3. Idioms
    in isolation (from somebody/something)
     
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    separately; alone To make sense, these figures should not be looked at in isolation. Words are pronounced differently in isolation from how they are pronounced in context.
See the Oxford Advanced Learner's Dictionary entry: isolation