reduction Pronunciation: /rɪˈdʌkʃn/Translate reduction | into German | into Italian | into Spanish French translation of reductionn 1 (in inflation, pressure, number) réduction (f) (in de); (of weight, size) diminution (f) (in de) 2 (discount) réduction (f), rabais (m)reduction in other Oxford dictionaries Definition of reduction in the British & World English dictionary Definition of reduction in the US English dictionary