retraction ring - RPET
- Rifater
- rifaximin
- RIFC
- RIFLE
- rIFN
- RIFS
- Rift Valley fever
- Rift Valley fever virus
- Rift Valley fever
- RIG
- Riga
- Riga-Fede disease
- Riga-Fede disease
- Riggs disease
- Riggs disease
- Riggs' disease
- RIGH
- RIGHT
- right aortic arch
- right atrioventricular orifice
- right atrioventricular valve
- right atrium of heart
- right auricle of heart
- right axis deviation
- right border of heart
- right brain
- right branch of atrioventricular bundle
- right bundle branch block
- right colectomy
- right colic artery
- right colic flexure
- right colic lymph nodes
- right colon
- right coronary catheter
- right coronary cusp of aortic valve
- right crus of atrioventricular bundle
- right crus of diaphragm
- right cusp of pulmonary valve
- right displacement of the abomasum
- right duct of caudate lobe of liver
