truth-function: Meaning and Definition of

truth-func•tion

Pronunciation: (trth'fungk"shun), [key]
— n. Logic.
  1. a statement so constructed from other statements that its truth-value depends on the truth-values of the other statements rather than on their meanings.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.