| Acronym | Meaning |
| IRPTC | International Register Of Potentially Toxic Chemicals |
| PFBC | Pressurized Fluidized-bed Combustion (in Energy Technology) |
| MIDI | Split Valence Plus Polarization Function (basis Set) |
| DOJ | U.S. Department Of Justice |
| GECSC | Generalized Exponential Cosine Screened Coulomb (potential) |
| MRAM | Magnetic Random Access Memory |
| QMRE | Quantum Mechanical Resonance Energy |
| SIMR | Swedish Institute For Metals Research |
| CEIP | Coastal Energy Impact Program |
| MOZAIC | Measurement Of Ozone And Water Vapor By Airbus In-Service Aircraft |