Home › Words › E › exterminatorexterminator/ɪkˈstɝmɪˌneɪtɚ/exterminator means someone or something that exterminates.exterminator is pronounced /ɪkˈstɝmɪˌneɪtɚ/.EtymologyBorrowed from Latin exterminātor. By surface analysis, exterminate + -or.nounSomeone or something that exterminates.Specifically, a person whose job it is to kill insects and other pests in a building.Definitions & examples from Wiktionary (CC BY-SA 3.0).