| Acronym | Meaning |
| IA | Impulse Approximation |
| TOM | Transition Operator Method |
| IRED | IR Emitting Diode |
| DCTL | Direct Coupled Transistor Logic |
| SILO | Strain Induced Lateral Ordering |
| SRGO | Straight Run Gas Oils |
| BART | Biological Activity Reaction Test |
| CLOPPA | Contribution From Localized Molecular Orbitals With Polarization Propagator Approach |
| IMT | Ion Microtomography |
| MP2-R12 | MP2 Theory With Terms Linear In Interelectronic Distance (r12) |