R
/ˈɑr/
Explore definitions, synonyms, and language insights of R
Definitions
Noun
a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
Noun
(physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole
Noun
the 18th letter of the Roman alphabet
Noun
the 18th letter of the Roman alphabet
Noun
the length of a line segment between the center and circumference of a circle or sphere