| Acronym | Meaning |
| PESA | Proton Elastic Scattering Anal. |
| IILE | Ion-induced Light Emission |
| AQG | Air Quality Guideline |
| EAE | Experimental Autoimmune Encephalomyelitis |
| PCGC | Parallel Column Gas Chromatography |
| AMTS | Advanced Moisture And Temperature Sounder |
| OEM | Original Equipment Manufacturer |
| LOSIS | Law Of The Sea Information System |
| PS1 | Presenilin 1 |
| NAA | Nonattainment Area |