#r
English
Edit on Github- a unit of radiation exposure
- Pos: noun
- (physics) the universal constant in the gas equation: pressure times volume = R times temperature
- Pos: noun
- the 18th letter of the Roman alphabet
- Pos: noun
- the length of a line segment between the center and circumference of a circle or sphere
- Pos: noun
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- حرف ' ر 'هيجدهمين حرف الفباى انگليسى