| Acronym | Meaning |
| TER | Total External Reflection |
| UARP | Upper Atmospheric Research Program |
| GFAP | Glial Fibrillary Acidic Protein |
| PDA | Phase Doppler Analysis |
| MACAWS | Multi-center Airborne Coherent Atmospheric Wind Sensor |
| LHDC | Lube Hydrocracking Distillate Catalyst |
| SCOWAR | Scientific Committee On Water Research |
| ATOC | Acoustic Thermometry Of Ocean Climate |
| ERCP | Endoscopic Retrograde Cholangiopancreatography |
| MECA | Multiple Excitation Collisional Activation |