faster-than-light

== English == === Adjective === faster-than-light (comparative form only) (physics) Faster than the speed of light in a vacuum, the theoretical speed limit for travel within the universe. ==== Usage notes ==== 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. ==== Synonyms ==== superlumic superluminal FTL ==== Derived terms ==== faster-than-light particle FTL ==== Translations ====