| Acronym | Meaning |
| TID | Thermionic Ionization Detector |
| ERIN | Environmental Resources Information Network |
| PCDW | Pluvinage Continuum Distorted Wave ( A Wave Function In Calcns. On Atomic And Molecular Collisions) |
| VLDPE | Very Low Density Polyethylene |
| SAMS | Stratospheric And Mesospheric Sounder |
| AA | Assistant Administrator |
| CEC | Capillary Electrochromatography |
| HAL | Health Advisory Level |
| TTP | Tocopherol Transfer Protein |
| MSO | Molecular Spin Orbital |