| Acronym | Meaning |
| AREP | Averaged Relativistic Effective Potential |
| GACT | Granular Activated Carbon Treatment |
| MSA | Many-trajectory Semiclassical Approxn. (in At.-collision Theory) |
| EEPLD | Electrically Erasable Programmable Logic Device |
| PTC | Positive Temperature Coefficient [elec. Conducting Material] |
| BOFT | Bearing Oil Film Thickness |
| DBS | Doppler Broadening Spectroscopy |
| POCH | Polarized Ochkur |
| SASS | Source Assessment Sampling System |
| GRF | Growth Hormone Releasing Factor |