bar·on·et·ess 
(bărə-nĭ-tĭs, băr′ə-nĕtĭs)
(bărə-nĭ-tĭs, băr′ə-nĕtĭs)n.
1. A woman holding a British hereditary title of honor reserved for commoners, ranking immediately below the barons and above all orders of knighthood except the Garter.
2. Used as the title for such a woman.