Definition of RAPIDITY

rapidity

Meanings

Plural: rapidities

Noun

  • a rate that is rapid
  • speed, swiftness; the condition of being rapid
  • 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).
  • A measure of the velocity of a particle in a beam relative to the beam's axis

Origin / Etymology

From rapid + -ity, from French rapidité, from Latin rapiditas.

Scrabble Score: 14

rapidity is a valid Scrabble (US) TWL word
rapidity is a valid Scrabble Word in Merriam-Webster MW Dictionary
rapidity is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 14

rapidity is a valid Words With Friends word