| Acronym | Meaning |
| MSS | Monosulfide Solid Solution |
| FWPCA | Federal Water Pollution Control Administration |
| INN | International Nonproprietary Names (for Drugs) |
| SWIFT | Sandia Waste-Isolation Flow And Transport Model |
| NRT | National Response Team |
| NIWG | National Interagency Work Group |
| PAS | Photoacoustic Spectroscopy |
| A/PI | Ab Initio Perturbed Ion (quantum Clacn. Method) |
| DGS | DiGeorge Syndrome |
| IBV | Infectious Bronchitis Virus |