| Acronym | Meaning |
| PEMFC | Polymer Electrolyte Membrane Fuel Cell |
| GCG | Genetics Computer Group |
| AAOE | Airborne Antarctic Ozone Experiment |
| ELS | Energy Loss Spectroscopy |
| ECS | Energy-corrected Sudden (scaling Theory In Mol. Collisions) |
| BCMA | B-cell Maturation Antigen |
| ACC | Aquifer Contamination Control |
| FWM | Four-wave Mixing |
| QEL | Quantity Exclusion Limit |
| HILIC | Hydrophilic Interaction Chromatography |