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The word or phrase r refers to the 18th letter of the Roman alphabet, or (physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole, or a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air, or the length of a line segment between the center and circumference of a circle or sphere. See r meaning in Urdu, r definition, translation and meaning of r in Urdu. Find r similar words, r synonyms. Learn and practice the pronunciation of r. Find the answer of what is the meaning of r in Urdu.
Other languages: r meaning in Hindi
What is r meaning in Urdu, r translation in Urdu, r definition, pronunciations and examples of r in Urdu.
