| Acronym | Meaning |
| RR | Relative Risk |
| PCILOCC | PCILO For Crystal Calculations |
| XFA | X-ray Fluorescence Analysis |
| PAX | Photoemission Of Adsorbed Xenon |
| PEFC | Polymer Electrolyte Fuel Cell |
| SCHA | Self-consistent Harmonic Approxn. |
| NSTC | National Science And Technology Council |
| MRSPT | Modified Rayleigh-Schroedinger Perturbation Theory |
| LOGS | Laser Optogalvanic Spectrometry |
| NCTR | National Center For Toxicological Research |