Definition of R

Noun

  • the length of a line segment between the center and circumference of a circle or sphere
  • the 18th letter of the Roman alphabet
  • (physics) the universal constant in the gas equation: pressure times volume = R times temperature
    equal to 8.3143 joules per kelvin per mole
    - gas constant - universal gas constant
  • a unit of radiation exposure
    the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

Word games points for the R

  • Scrabble® score of the r (1)
  • Word Chums® score of the r (1)
  • Words With Friends® score of the r (1)