terminator

ter·mi·na·tor  (tûrm-ntr)

n.

1. One that terminates: a terminator of unpopular policies.

2. The dividing line between the bright and shaded regions of the disk of the moon or an inner planet.

3. A sequence of nucleotides that signals the end of transcription or translation and the completion of the synthesis of a nucleic acid or protein molecule.

Thesaurus

Noun

1.

terminator - someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects) eradicator, exterminator killer, slayer - someone who causes the death of a person or animal