Meaning of Helmholtz function

Helm'holtz func"tion

Pronunciation: [key]
  1. the thermodynamic function of a system that is equal to its internal energy minus the product of its absolute temperature and entropy: A decrease in the function is equal to the maximum amount of work available during a reversible isothermal process. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.