Rapidity

Noun

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

Derived terms

 * midrapidity
 * pseudorapidity

Adjectives for Rapidity
incredible; fair; sufficient; inconceivable; fearful; marvelous; feverish; facial; dexterous; appalling; lightning; extraordinary; extreme; disconcerting; amazing; racial.

Thesaurus
air speed, alacrity, bat, briskness, ceaselessness, celerity, chattering, constancy, constant flow, continualness, continuity, decisiveness, dispatch, expedition, expeditiousness, fastness, flight, flit, flurry, gait, ground speed, haste, hurry, immediacy, immediateness, incessancy, instantaneousness, knots, lightning speed, miles per hour, noninterruption, oscillation, pace, perpetuity, precipitation, promptitude, promptness, pulsation, punctuality, punctualness, quick fire, quickness, rapid fire, rapid recurrence, rapid succession, readiness, regularity, repetition, round pace, rpm, rush, snappiness, speed, speediness, staccato, steadiness, stuttering, summariness, sustainment, swift rate, swiftness, tattoo, unintermission, uninterruption, velocity, vibration

Translations

 * French: rapidité
 * Italian:


 * Polish:
 * Spanish: