Question 1 · Quick check
rapidity
/ɹəˈpɪd.ɪ.ti/
noun
Türkçe translations
Translating…
In plain English
- 01
noun
The quality or speed of happening very quickly.
- 02
noun
Extra detailA 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).
Examples
I was pleased with the rapidity with which he mastered Japanese.
Rapidity of rise may be inversely proportional to duration at altitude.
At a glance
Sits at C1 on the CEFR scale
- Senses
- 4
- Parts of speech
- 1
- Citations
- 2
Also pronounced
- /ˈræ.pɪ.ɖɪ.ʈi/
Deep Dive
noun
Extra meaningsspeed, swiftness; the condition of being rapid
A measure of the velocity of a particle in a beam relative to the beam's axis
Quick test
Two questions on this entry. Nothing is scored.
Practise this properly in the app, where the word comes back before you forget it.
Nearby
Origin
noun
From rapid + -ity, from French rapidité, from Latin rapiditas.