exterminator

名词 exterminator:

1. someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects)
   同义词：terminator, eradicator

ex.ter.mi.na.tor

n.（名词）
One that exterminates, especially one whose occupation is the extermination of vermin.
扑灭者，根除者：扑灭者，根除者，尤指以消除害虫为业的人