The meaning of the Acronym R is...

R is

• Roll
• Radial
• Rail
• Rugged
• Recovery
• Yaw Rankine Rate
• Roentgen
• Right
• Resistance
• Replace
• Reliability
• Rehydratable
• Regulate
• Redundant
• Receive
• Rear
• Ratio
• Rankine
• Range Rate
• Range
• Radius

More Meanings For R:

• Received solid signal
• Responder
• Riser
• Ring
• Ray
• Rumex
• Retardation
• Receptive
• Room
• Repeat
• Research
• Angle of Reflection
• Result
• Roentgen
• Resilience

R is also in:

• Amateur Radio
• Architecture
• Astronomy
• Botany
• Physics
• Psychology
• Universities