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sublight

sublight

7 9.0
A speed of travel slower than the speed of light
  • noun
  • /ˈsʌblaɪt/
translation icon : velocidad sublumínica
  • The spaceship traveled at sublight speeds to reach the distant planet.
  • sublight engine
  • sublight speed
  • sublight drive

Examples

  • Sublight thrusters, full power!

  • In science fiction stories, heroes often rely on sublight travel to explore new worlds.

  • "Set your course at two-eight-four; speed, point six sublight.

    Fiction book (1991)
  • "But what if The Network requires a consensus among all members before adding new members, and the debate and voting have to proceed at sublight speed?"

    Blog text (6)
  • When Nefer announced that our tail had emerged behind us, Hersule said, "Give us maximum sublight to the Wheel."

    Fiction book (1991)
  • Sublight one-quarter speed.

  • We would lose roughly three hours with each jump, so the perceived duration would be closer to ten days, all of which would be spent making the slow sublight crawls between jumps.

    Fiction book (1991)
  • But even as she did so, she heard the subtle change in sound and vibration pattern as the main sublight drive shut down and the repulsorlift kicked in.

    Fiction book (1991)
  • It was inadvertently placed on an economy-class sublight generation ship bound for Noivilbo 11.

    Fiction book (1999)
  • The old CC-12's computers were in excellent working order, but the sublight speed tracking needed recalibrating, and Andro was busy trying to keep the ship on course.

    Fiction book (1991)

Antonyms

superluminal
  • Specialized
9.9

A particle or signal that moves faster than the speed of light

How Fast

lightspeed
  • Specialized
2 4.9
sublight
7 9.0

Surface Forms

sublight singular
sublights plural

Morphology

sublight = light (semi-transparent) = sub + light

The form clearly means 'below light' or 'slower than light', but the scientific and science-fictional speed sense is not fully predictable for an average learner.

Etymology

Sublight comes from sub- meaning 'below' and light, as in the light we see and the 'speed of light'. So, as a noun, a sublight speed or travel mode is a way of moving that is below the 'speed of light', that is, slower than light.