| Acronym | Meaning |
| SPI | Society For The Plastics Industry |
| CISD | Configuration Interaction With Single And Double Excitation |
| MCDF-OL | Multiconfiguration Dirac-Fock Optimum Level |
| CUS | Coordinatively Unsaturated Site |
| AAIW | Antarctic Intermediate Water |
| EX-MEG | Excited-mixed Exponentially Generated (wave Function) |
| MULTIMED | Multimedia Exposure Assessment Model |
| NMI | Nautical Miles |
| PLIF | Planar Laser Induced Fluorescence |
| SCN | Suprachiasmatic Nucleus |