'Terminator' definitions:

Definition of 'terminator'

From: WordNet
noun
Someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects) [syn: exterminator, terminator, eradicator]

Definition of 'Terminator'

From: GCIDE
  • Terminator \Ter"mi*na`tor\, n. [L., he who limits or sets bounds.]
  • 1. One who, or that which, terminates. [1913 Webster]
  • 2. (Astron.) The dividing line between the illuminated and the unilluminated part of the moon. [1913 Webster] [1913 Webster]