| Acronym | Meaning |
| TDC | Time-to-Digital Converter |
| EK | Extended Koopmans (method In Ionization Potential Calcns.) |
| TAI | Thermal Alteration Index |
| COP | Cyclic Olefin Polymers |
| ERE | Estrogen-responsive Element |
| E2PROM | Electrically Erasable Programmable Read Only Memory |
| AOD | Argon Oxygen Decarburization |
| TICS | Time Reversal Invariant Closed Shell (type Of Hartree-Fock Wave Function) |
| ATPASE | Adenosine Triphosphatase |
| FPLV | Feline Panleukopenia Virus |