Homonym: terminators (Robotics)
A "terminator" refers to a boundary that separates the illuminated side of a celestial body, like the Moon or a planet, from its dark side. This line is significant in astronomy because it marks the transition between day and night, affecting how we observe surface features and shadows.
In popular culture, the term "Terminator" is also associated with the Terminator film series, which features a fictional cyborg assassin sent from the future. These movies explore themes of artificial intelligence and time travel, highlighting the potential consequences of advanced technology on humanity.