| Acronym | Meaning |
| GILD | Gas Immersion Laser Doping |
| CEMS | Conversion Electron Moessbauer Spectroscopy |
| PMCC | Pensky-Martens Closed Cup |
| NSRDS | National Standard Reference Data System |
| ARIES | Angle Resolved Ion Electron Spectroscopy |
| ISCRF | Inhomogeneous Self-consistent Reaction Field Theory |
| ARRPA | Air Resources Regional Pollution Assessment Model |
| EAN | Effective Atomic Number |
| IPM | Independent Particle Model |
| ECFP | Enhanced Cyan Fluorescent Protein |