TERMINATOR
exterminator, terminator, eradicator
(noun) someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects)
Source: WordNet® 3.1
Etymology
Noun
terminator (plural terminators)
Someone who terminates or ends something, especially (in later use) an assassin or exterminator. [from 17th c.]
(astronomy) The line between the day side and the night side of a moon, planet or other celestial body. [from 17th c.]
(biochemistry) A DNA sequence which causes RNA transcription to cease and an mRNA transcript to break off. [from 20th c.]
(electronics) An electrical device that absorbs reflection at the end of a transmission line.
(science fiction) An intelligent android created to destroy humans (after the 1984 film The Terminator).
Synonyms
• (astronomy): grey line, separatrix (the general term for such lines)
Anagrams
• antitremor
Source: Wiktionary
Ter"mi*na`tor, n. Etym: [L., he who limits or sets bounds.]
1. One who, or that which, terminates.
2. (Astron.)
Definition: The dividing line between the illuminated and the unilluminated
part of the moon.
Source: Webster’s Unabridged Dictionary 1913 Edition