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1. Moderating by making more temperate

1. Hardening something by heat treatment
   - annealing

1. Bring to a desired consistency, texture, or hardness by a process of gradually heating and cooling
   "temper glass"
   - anneal, normalize, normalise [Brit]
    
2. Harden by reheating and cooling in oil
   "temper steel"
   - harden
    
3. Adjust the pitch (of pianos)
    
4. Make more temperate, acceptable, or suitable by adding something else; moderate
   "she tempered her criticism"
   - season, mollify
    
5. Restrain
   - chasten, moderate

Derived forms: temperings

See also: moderating, temperance

Type of: adjust, alter, change, correct, harden, hardening, indurate, modify, set, weaken

Encyclopedia: Temper