Source : Free On-Line Dictionary of Computing

truth table
     
         A table listing all possible combinations of inputs
        and the corresponding output of a {Boolean} function such as
        {AND}, {OR}, {NOT}, {IMPLIES}, {XOR}, {NAND}, {NOR}.  Truth
        tables can be used as a means of representing a function or as
        an aid in designing a circuit to implement it.
     
        (1998-07-30)