| Acronym | Meaning |
| TDFM | Two-surface Dirac-Frenkel-Mclachlan (variational Method) |
| CAM | Coupled Angular Modes (method In Calcns. On Electron Exchange Collisions) |
| CCRM | Coupled-channel Reactance Matrix (in Atom Surface Scattering) |
| ICES | International Council For The Exploration Of The Sea |
| LCC | Leadless Chip Carrier |
| FELIX | Free Electron Laser For Infrared Experiments |
| GDA | Glow Discharge Atomization (for Atomic Absorption Spectrometry) |
| QSM | Quantum Shell Model |
| OPAL | Optical Pumping Absorption Lidar |
| STREAM | Stream Transport And Agricultural Runoff Of Pesticides For Exposure Assessment Methodology |