| Acronym | Meaning |
| EPER | European Pollutant Emission Register |
| AS-PCR | Allele-specific Polymerase Chain Reaction |
| SNIF | Site-specific Natural Isotope Fractionation |
| SNS | Separation Network Synthesis (chemical Engineering Design) |
| ACC | Acetyl-CoA Carboxylase |
| UPS | Uninterrupted Power Systems (for Computer Networks) |
| TIME | Temporally Integrated Monitoring Of Ecosystems |
| IPPA | Independent Pair-potential Approximation |
| ESIC | Earth Science Information Center |
| MCWF | Monte-Carlo Wave Function (method In Study Of Dissipative Processes In Quantum Optics) |