| R' | in electrocardiography, the second positive deflection during the QRS complex |
|---|---|
| ROCF | Rey-Osterrieth Complex Figure |
| rSr | an electrocardiographic complex |
| SFMC | soluble fibrin monomer complex |
| TAT | tetanus antitoxin; thematic apperception test; thematic aptitude test; thrombin-antithrombin complex... |