The length of a line segment between the center and circumference of a circle or sphere
English: radius, r
rEnglish
R, r, gas constant, radius, roentgen
Noun
(physics) the universal constant in the gas equation: pressure times volume = R times temperature, equal to 8.3143 joules per kelvin per mole
English: gas constant, universal gas constant, R
A unit of radiation exposure, the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
English: roentgen, R
Bahasa: rontgen
1 more noun senses
The 18th letter of the Roman alphabet
English: R, r