Word parts exterminate + -or Pronunciation (US) IPA (key): /ɪkˈstɝmɪˌneɪtɚ/ (UK) IPA (key): /ɪkˈstɜːmɪˌneɪtə/ Noun Singular exterminator Plural exterminators (countable) An exterminator is person whose job it is to kill insects and other pests in a building. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads