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Definition of effusion noun from the Oxford Advanced American Dictionary

     

    effusion

     noun
    noun
    NAmE//ɪˈfyuʒn//
     
    [countable, uncountable]
     
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  1. 1(technology) something, especially a liquid, that flows out of someone or something; the act of flowing out
  2. 2(formal) the expression of feelings in an exaggerated way; feelings that are expressed in this way
See effusion in the Oxford Advanced Learner's Dictionary
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