'Traitress' definitions:

Definition of 'traitress'

From: WordNet
noun
Female traitor

Definition of 'Traitress'

From: GCIDE
  • Traitress \Trai"tress\, n. [F. tra[^i]tresse.] A woman who betrays her country or any trust; a traitoress. --Dryden. [1913 Webster]