rapidity
Hello, you have come here looking for the meaning of the word rapidity. In DICTIOUS you will not only get to know all the dictionary meanings for the word rapidity, but we will also tell you about its etymology, its characteristics and you will know how to say rapidity in singular and plural. Everything you need to know about the word rapidity you have here. The definition of the word rapidity will help you to be more precise and correct when speaking or writing your texts. Knowing the definition ofrapidity, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
English
Etymology
From rapid + -ity, from French rapidité, from Latin rapiditas.
Pronunciation
- IPA(key): /ɹəˈpɪdɪti/
Audio (Southern England): (file)
Noun
rapidity (countable and uncountable, plural rapidities)
- speed, swiftness; the condition of being rapid
- 1944 November and December, Talisman, “A Broadening Horizon”, in Railway Magazine, page 340:
- 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.
- (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).
- (physics) A measure of the velocity of a particle in a beam relative to the beam's axis
Derived terms
Translations
speed, swiftness
|