Source : Webster's Revised Unabridged Dictionary (1913)

Pythoness \Pyth"o*ness\, n. [L. pythonissa: cf. F. pythonisse.
   See {Pythian}.]
   1. (Gr. Antiq.) The priestess who gave oracular answers at
      Delphi in Greece.

   2. Any woman supposed to have a spirit of divination; a sort
      of witch. --Bp. Hall.

Source : WordNet®

pythoness
     n 1: a witch with powers of divination
     2: (Greek mythology) the priestess of Apollo at Delphi who
        transmitted the oracles [syn: {Pythia}]