| Acronym | Meaning |
| VRIOSA | Vibrational/rotational Infinite-order Sudden Approximation |
| ITP | Inosine 5'-triphosphate |
| EPLD | Erasable Programmable Logic Device |
| PASTM | Photon Assisted Scanning Tunnel Microscopy |
| VSS | Volatile Suspended Solids |
| QSR | Quality Status Report (of North Sea Task Force) |
| CLC | Clean Lakes Clearinghouse |
| QD-MBPT | Quasi-degenerate Many-body Perturbation Theory |
| ACC-IOS | Azimutal Close Coupled-infinite Order Sudden |
| GMAW | Gas Metal Arc Welding |