work function

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work function

n.
The minimum amount of energy required to remove an electron from the surface of a metal.

work function

n
1. (General Physics) physics the minimum energy required to transfer an electron from a point within a solid to a point just outside its surface. Symbol: φ or Φ
2. (General Physics) thermodynamics another name (not now used because of confusion with sense 1) for Helmholtz function