ENGLISH DICTIONARY

Rapidity

Definition, Meaning & Examples

Pronunciation /ɹəˈpɪd.ɪ.ti/ · Part of speech noun

Quick meaning: Rapidity is a noun meaning speed, swiftness; the condition of being rapid.

Meaning

speed, swiftness; the condition of being rapid.

More Meanings

  1. (physics) A measure of the velocity of a particle in a beam relative to the beam's axis
  2. (relativity) A measure of velocity relative to the speed of light; defined as artanh(v), where artanh is the hyperbolic arctangent, and v = speed (with c = speed of light = 1).

Example Sentences

Although appreciating the rapidity and frequency of the Southern electric services I was now to use on short journeys, I became more than ever convinced that electric traction offers very little of interest to the dyed-in-the-wool railwayist.

Word Forms

Synonyms for rapidity

Depending on context, synonyms include celerity, quickness.

Related Words

Related dictionary entries include celerity, quickness, speediness, rapid, swiftness, haste.

Related Dictionary Tools

Sources & Attribution

FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0

Dictionary data is provided by FreeDictionaryAPI.com and sourced from Wiktionary under its stated license.