10 letters · 12 points in Scrabble
noun someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects)
origin* Partly from post-classical Latin terminator (5th century), from Latin terminō; partly from terminate + -or. * (android that kills humans): After the 1984 film The Terminator.
Etymology from Wiktionary, CC BY-SA 3.0