Word.ws English Dictionary

Planck speed

Planck speed noun: the velocity equal to one Planck length per Planck time; equal to the speed of light. Symbol is v_P or c.

Noun

Planck speed (uncountable)

  1. The velocity equal to one Planck length per Planck time; equal to the speed of light. Symbol is v_P or c.

Questions about Planck speed

What does Planck speed mean?
Planck speed means the velocity equal to one Planck length per Planck time; equal to the speed of light. Symbol is v_P or c.
What part of speech is Planck speed?
Planck speed is a noun.

Words near Planck speed in the dictionary

  1. Planck pressure
  2. Planck pressures
  3. Planck relic
  4. Planck relics
  5. Planck scale
  6. Planck speed
  7. Planck star
  8. Planck stars
  9. Planck temperature
  10. Planck temperatures
  11. Planck time

Source and license

Adapted from Wiktionary: Planck speed (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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