| REMAB | radiation-equivalent-manikin absorption |
|---|---|
| REMCAL | radiation-equivalent-manikin calibration |
| RERF | Radiation Effects Research Foundation |
| RH | radiant heat; radiation hybrid; radiological health; reactive hyperemia; recurrent herpes; regulator... |
| RI | radiation intensity; radioactive isotope; radioimmunology; recession index; recombinant inbred [stra... |