Faster-than-light

From Fresh Dictionary

English

Adjective phrase

faster-than-light

1. Refers to speeds faster than the speed of light in a vacuum, the theoretical speed limit for travel within the universe.

Usage note

• This is the form used before a noun. After a noun, the form used is faster than light:

  The laws of physics forbid faster-than-light travel.

  Tachyons travel at speeds faster than light.