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Webster 1913 Edition


Rapidity

Ra-pid′i-ty

(rȧ-pĭd′ĭ-ty̆)
,
Noun.
[L.
rapiditas
: cf. F.
rapidité
.]
The quality or state of being rapid; swiftness; celerity; velocity;
as, the
rapidity
of a current;
rapidity
of speech;
rapidity
of growth or improvement
.
Syn. – Rapidness; haste; speed; celerity; velocity; swiftness; fleetness; quickness; agility.

Webster 1828 Edition


Rapidity

RAPID'ITY

,
Noun.
[L. rapiditas.]
1.
Swiftness; celerity; velocity; as the rapidity of a current; the rapidity of motion of any kind.
2.
Haste in utterance; as the rapidity of speech or pronunciation.
3.
Quickness of progression or advance; as rapidity of growth or improvement.

Definition 2022


rapidity

rapidity

English

Noun

rapidity (plural rapidities)

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

Derived terms

Translations