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work function

noun
1.
Physics. the least energy necessary to free an electron from a metal surface.
2.
Thermodynamics, Helmholtz function.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for work-function

work function

noun
1.
(physics) the minimum energy required to transfer an electron from a point within a solid to a point just outside its surface φ, Φ
2.
(thermodynamics) another name (not now used because of confusion with sense 1) for Helmholtz function
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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