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

     

    moderation

     noun
    noun
    BrE BrE//ˌmɒdəˈreɪʃn//
     
    ; NAmE NAmE//ˌmɑːdəˈreɪʃn//
     
    [uncountable]
     
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  1. 1the quality of being reasonable and not being extreme There was a call for moderation on the part of the trade unions. Alcohol should only ever be taken in moderation (= in small quantities). Moderation in eating and drinking is the way to stay healthy.
  2. 2(British English) (in education) the process of making sure that the same standards are used by different people in marking exams, etc.
  3. Word Origin late Middle English: via Old French from Latin moderatio(n-), from the verb moderare ‘to control’; related to modest.Extra examples Drinking alcohol is all right in moderation. Moderation is the key to good health. The government called for greater moderation on the part of the unions.
See the Oxford Advanced American Dictionary entry: moderation