| Abbreviation | Definition |
|---|---|
| RADAGS | Radar Aimpoint Guidance System |
| RADAM | Radar Detection of Agitated Metals |
| RADAR | RAdio Detection And Ranging |
| RADAY | Radio Day |
| RADBN | Radio Battalion |
| RADC | Region Air Defense Commander |
| RADC | Rome Air Development Center |
| RADC | Royal Army Dental Corps |
| RADCAD | Radar Computer- Aided Design |
| RADCON | Radiological Control Team |
| RADF | Radarfind |
| RADHAZ | Electromagnetic Radiation Hazards |
| RADINT | Radar Intelligence |
| RADIUS | Remote Authentication dial In User Service |
| RADM | Rear Admiral |
| RADS | Radar Acquisition Data System |
| RADS | Rapid Area Distribution Support (USAF) |
| RAE | Right of Assistance Entry |
| RAF | Rapid Action Force |
| RAF | Real Air Force |