Definition, Meaning & Synonyms

terminator

noun
/ˈtɜːrmɪˌneɪtər/
Definition
A boundary or dividing line between two distinct areas, especially in a solar system or regarding celestial bodies.
Examples
  • The terminator on the Moon is clearly visible during a lunar eclipse.
  • In science fiction, a terminator often refers to a character or device that marks the end of something.
Meaning
In astronomy, the terminator is the line that separates the illuminated part of a celestial body from the dark part.
Synonyms
  • boundary
  • dividing line
  • limiting point