'Tormenter' definitions:

Definition of 'tormenter'

From: WordNet
noun
Someone who torments [syn: tormentor, tormenter, persecutor]
noun
A flat at each side of the stage to prevent the audience from seeing into the wings [syn: tormenter, tormentor, teaser]

Definition of 'Tormenter'

From: GCIDE
  • Tormenter \Tor*ment"er\, n.
  • 1. One who, or that which, torments; a tormentor. [1913 Webster]
  • 2. An executioner. [Obs.] --Chaucer. [1913 Webster]