The word terminator is from Latin and means roughly the finisher.
In astronomy, the terminator is the line between the day side and the night side of a planetary body (also known as the "grey line"). See terminator (solar).
The Terminator is an American motion picture involving a cyborg that has been sent back through time to "terminate" or kill a woman whose life will have importance in the future.
A terminator gene is used in some genetically engineered crops to prevent collection and resowing of seed.
In the Warhammer 40,000 universe, Terminator or Tactical Dreadnaught power armor enables the wearer to take massive damage and fire large weapons while moving.
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