| Acronym | Meaning |
| APRE | Acute-phase-responsive Element |
| ATTIC | Alternative Treatment Technology Information Center (US EPA) |
| MORD | Magnetic Optical Rotation Dispersion |
| ASP | Auger Sputter Profiling |
| OAR | Office Of Air And Radiation (USEPA) |
| GLP | Good Laboratory Practices (US FDA) |
| PCAD | Power Conditioning And Distribution (in Spacecraft) |
| FIRFT | Fast Inversion-recovery Fourier Transform |
| PRB | Permeable Reactive Barrier |
| ABR | Anaerobic Baffled Reactor (for Wastewater Treatment) |