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



    BrE BrE//ˌdɪmɪˈnjuːʃn//
    ; NAmE NAmE//ˌdɪmɪˈnuːʃn//
    diminution (of/in something) (formal)
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  1. 1[uncountable] the act of reducing something or of being reduced the diminution of political power
  2. 2[countable, usually singular] a reduction; an amount reduced a diminution in population growth
  3. Word OriginMiddle English: via Old French from Latin deminutio(n-), from the verb deminuere, from minuere ‘make small’.
See the Oxford Advanced American Dictionary entry: diminution