| Acronym | Meaning |
| ROSDAL | Representation Of Organic Structure Description Arranged Linearly |
| NIPDWR | National Interim Primary Drinking Water Regulations |
| SUMP | Spin-constrained Unrestricted Moeller-Plesset |
| DOD | Department Of Defense |
| IRAV | Intense Infrared Active Vibration |
| ICSU | International Council Of Scientific Unions |
| DRS | Dissolved Reactive Silicate |
| EDMR | Electrically Detected Magnetic Resonance |
| ELG | Emission-line Galaxy |
| APMI | American Powder Metallurgy Institute |