| RA | radioactive; ragocyte; ragweed antigen; rapidly adapting [receptors]; reactive arthritis; reciprocal... |
|---|---|
| RAFMS | Royal Air Force Medical Services |
| SAR | scatter/air ratio; seasonal allergic rhinitis; sexual attitude reassessment; slowly adapting recepto... |
| TA | alkaline tuberculin; arterial tension; axillary temperature; tactile afferent; Takayasu arteritis; t... |
| TAR | thoracic aortic rupture; thrombocytopenia with absent radii [syndrome]; tissue-air ratio; total abor... |