| Acronym | Meaning |
| BCM | Bond Charge Model (in Force Constants Calcn.) |
| POPCORN | Photo-Oxidant Formation By Plant Emitted Compds. And OH Radicals In North-Eastern Germany |
| WINDII | Wind Imaging Interferometer |
| SPL | Spent Potliner |
| THEL | Tactical High Energy Laser |
| EBSM | Extended Breathing Shell Model |
| AIMDSA | Ab Initio Molecular Dynamics Simulated Annealing |
| FSCC | Fock Space Coupled Cluster |
| SCOP | Structural Classification Of Proteins |
| MSA | Methanesulfonic Acid (air Pollutant) |