| Acronym | Definition |
|---|
| RDX | Reflex Datafile |
| RDX | Realistic Display Mixer |
| RDX | Cyclotrimethylenetrinitramine (CAS Number 121-82-4) |
| RDX | Royal Demolition Explosive |
| RDX | Regional Data Exchange |
| RDX | Research and Development Explosive (less common) |
| RDX | Radixin |
| RDX | Hexahydro-Trinitro-Triazine (explosive/propellant) |
| RDX | Russian Depositary Index |
| RDX | Rapid Detonating Explosive |
| RDX | Research Department Explosive/Royal Demolition Explosive (British code name for Hexahydro-trinitro-triazine) |
| RDX | Research and Development Xtreme (electric touring car) |
| RDX | Rapid Deployment X-Ponder |