Usually means: Measure of particle velocity, relativistically.
Definitions Related words Mentions History Colors (New!)
We found 25 dictionaries that define the word rapidity:

General (21 matching dictionaries)
  1. rapidity: Merriam-Webster
  2. rapidity: Oxford Learner's Dictionaries
  3. rapidity: Collins English Dictionary
  4. rapidity: Vocabulary.com
  5. Rapidity, rapidity: Wordnik
  6. rapidity: Cambridge Advanced Learner's Dictionary
  7. rapidity: Wiktionary
  8. rapidity: The Wordsmyth English Dictionary-Thesaurus
  9. rapidity: Infoplease Dictionary
  10. Rapidity, rapidity: Dictionary.com
  11. Rapidity: Wikipedia, the Free Encyclopedia
  12. Rapidity: Online Plain Text English Dictionary
  13. rapidity: Webster's Revised Unabridged, 1913 Edition
  14. rapidity: Rhymezone
  15. Rapidity: AllWords.com Multi-Lingual Dictionary
  16. rapidity: Webster's 1828 Dictionary
  17. rapidity: FreeDictionary.org
  18. rapidity: Mnemonic Dictionary
  19. rapidity: TheFreeDictionary.com

Business (1 matching dictionary)
  1. rapidity: Legal dictionary

Computing (1 matching dictionary)
  1. rapidity: Encyclopedia

Medicine (1 matching dictionary)
  1. rapidity: Medical dictionary

Science (1 matching dictionary)
  1. Rapidity: Eric Weisstein's World of Physics

Definitions from Wiktionary (rapidity)

noun:  speed, swiftness; the condition of being rapid
noun:  (physics) 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).
noun:  (physics) A measure of the velocity of a particle in a beam relative to the beam's axis

Similar:

Opposite:

Types:

Adjectives:

Colors:
    red,     orange,     yellow,     lime green,     electric blue, more...

Words similar to rapidity

Usage examples for rapidity

Idioms related to rapidity

Wikipedia articles (New!)

Popular adjectives describing rapidity

Words that often appear near rapidity

Rhymes of rapidity

Invented words related to rapidity

Similar:

Opposite:

Types:

Adjectives:

Colors:
    red,     orange,     yellow,     lime green,     electric blue, more...



Writing poetry or lyrics? You can find related words that match a given meter.
This feature is permanently available from the "Related words" tab and from the Thesaurus.





Home   Reverse Dictionary / Thesaurus   Datamuse   Word games   Spruce   Feedback   Dark mode   Random word   Help


Color thesaurus

Use OneLook to find colors for words and words for colors

See an example

Literary notes

Use OneLook to learn how words are used by great writers

See an example

Word games

Try our innovative vocabulary games

Play Now

Read the latest OneLook newsletter issue: Threepeat Redux