| Acronym | Meaning |
| PSRG | Position-space Renormalization Group (for D.-of-states Calcns.) |
| EAS | Extensive Air Shower |
| ESO | European Southern Observatory |
| MEUG | Minimum Energy Uncertainty Gaussian (wave Packets) |
| ANDA | Abbreviated New Drug Application |
| CTARC | Chemical Testing And Assessment Research Commission |
| LEO | Low Earth Orbit |
| READS | Restriction Enzyme Analysis Of Differentially-expressed Sequences |
| EDFA | Er-doped Fiber Amplifier |
| ODS | Ozone Depleting Substances |