Whats the meaning of the word tempers mean?

temper

/ˈtɛmpə/

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verb

3rd person present: tempers

   1.

   improve the hardness and elasticity of (steel or other metal) by reheating and then cooling it.

   "the way a smith would temper a sword"

       improve the consistency or resiliency of (a substance) by means of a process involving heat or chemicals.

       "the display is a single sheet of glass, tempered for strength"

       Similar:

       harden

       strengthen

       toughen

       fortify

       anneal

   2.

  act as a neutralizing or counterbalancing force to (something).

   "their idealism is tempered with realism"

Explanation:

1. eadweard muybridge creates series photography - 1877

2. the kinetograph - 1889

3. philo farnsworth - 1929

4. kodak introduces kodachrome - 1935

5.   once upon a time in mexico was the first film to be shot digitally - 2003

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