| Acronym | Meaning |
| LEDO | Limited Expansion Of Diatomic Overlap |
| SOHO | Solar And Heliosphere Observatory |
| CAEAL | Canadian Association For Environmental Analytical Laboratories |
| ICAO | International Civil Aviation Organization |
| RSMST | Real-space Multiple-scattering Theory (in Electronic Structure) |
| EEC | European Economic Community |
| VEM | Video-enhanced Microscopy |
| WRAP | Waste Reduction And Prevention Act (Manitoba |
| FTHFB | Finite-temperature Hartree-Fock-Bogolyubov |
| PFZ | Polar Frontal Zone |