- root (in grammar)
- root
- rauwolfla serpentina
- reclusiveness
- renal
- rolling on the bed
- rolling resistance
- relating to mental training
- root system
- rootbound
- rootage
- receptive
- ripping
- remote concentrator
- remote control and navigation system
- rsa
- rc
- reverse_flow electrophoresis
- reversed bandage
- reversed anaphylaxis
- reversed 3 deformity
- reversed
- reversed phase partition chromatography
- reversed oval face
- river blindness
- roadways
- redemption charges
- redemption
- repositioning
- reinsurance
- related through or pertaining to
- ripening
- regnal
- restfulness
- rcmp
- reviling utterance
- rasputin
- rast camphor method
- removing or relieving pain
- rosa galica
- red line
- red_tinged
- rights of women
- reduced tillage
- regional(ist)
- repeated sounds of (see)
- rough sketch
- rough account
- real tale
- row intercropping