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
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▸ 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:
celerity,
quickness,
rapidness,
speediness,
swiftness,
fastness,
speed,
fleetness,
speedfulness,
expeditiousness,
more...
Opposite:
Types:
Adjectives:
great,
such,
astonishing,
extraordinary,
amazing,
extreme,
surprising,
incredible,
wonderful,
equal,
remarkable
Colors:
▸ 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