'Exterminator' definitions:

Definition of 'exterminator'

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

Definition of 'Exterminator'

From: GCIDE
  • Exterminator \Ex*ter"mi*na`tor\, n. [L.] One who, or that which, exterminates. --Buckle. [1913 Webster]