Search Result for "murderess": 
Wordnet 3.0

NOUN (1)

1. a woman murderer;


The Collaborative International Dictionary of English v.0.48:

Murderess \Mur"der*ess\, n. A woman who commits murder. [1913 Webster]
WordNet (r) 3.0 (2006):

murderess n 1: a woman murderer