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lightspeed

noun

Etymology

From light + speed.

  1. derived from *speh₁-✻
  2. derived from *spōaną✻
  3. derived from *spōan✻
  4. inherited from *spōdi✻
  5. inherited from spēd
  6. inherited from sped
  7. compounded as lightspeed — “light + speed”

Definitions

  1. The speed of light (in vacuum unless another medium is specified).

    • If we're going to a world a hundred light-years from here at near lightspeed, we spend according to our own perceptions, only a few minutes doing so and arrive only a few minutes older.
    • He paused, then finished, “with the drive from the Linz, he can do over 500 lightspeeds to meet us.

  2. An extremely fast speed.

The neighborhood

Vish — recursive loop

No curated loop yet for lightspeed. Loops are being traced one word at a time while the ingestion pipeline matures.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA