| Acronym | Meaning |
| TSD | Treatment, Storage, Or Disposal |
| NIBSC | National Institute For Biological Standards And Control |
| UNS | Unified Numbering System For Metals And Alloys |
| SAPRC | Statewide Air Pollution Research Center |
| NASQUAN | National Stream Water Quality Accounting Network |
| HTTP | Hypertext Transfer Protocol |
| ARM | Atmospheric Radiation Measurement |
| QMO | Quaternionic Molecular Orbital Method |
| RME | Reduced Matrix Equations |
| CPDW | Circumpolar Deep Water |