| Acronym | Meaning |
| LAPIS | Linden Atmosphere/Phytosphere Interaction Study |
| MET | Many Electron Theory (for Singlet Ground State) |
| LID | Low Impact Developmentpar |
| RTPM | Radical Triplet Pair Mechanism |
| ELDOR | Electron Double Resonance |
| UJT | Unijunction Transistor |
| AODC | Australian Oceanographic Data Center |
| CPR | Cytochrome P 450 Reductase |
| IMPDH | Inosine-5'-monophosphate Dehydrogenase |
| MPK | Methyl Propyl Ketone |