| Acronym | Meaning |
| APPM | Atomic Parts Per Million |
| IRS | Insulin Receptor Substrate |
| EMEA | European Medicines Evaluation Agency |
| PSCI | Partitioned (orbital Hessian) Super-configuration Interaction |
| FSG | Fluorosilicate Glass |
| GWTR | Ground Water Treatment Rule |
| SWPPP | Stormwater Pollution Prevention Plan |
| FOM | Forced Oscillator Model |
| UHC | Unburned Hydrocarbons |
| CERCLA | Comprehensive Environmental Response |