Definition of temper verb from the Oxford Advanced American Dictionary

     

    temper

     verb
    verb
    NAmE//ˈtɛmpər//
     
    Verb Forms present simple I / you / we / they temper
     
    he / she / it tempers
     
    past simple tempered
     
    -ing form tempering
     
     
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  1. 1temper something (with something) (formal) to make something less severe by adding something that has the opposite effect Justice must be tempered with mercy. The hot sunny days were tempered by a light breeze. His delight was tempered by regret.
  2. 2temper something (technology) to make metal as hard as it needs to be by heating and then cooling it tempered steel
See the Oxford Advanced Learner's Dictionary entry: temper