| Acronym | Meaning |
| LNG | Liquefied Natural Gas |
| TOPSE | Tropospheric Ozone Production About The Spring Equinox |
| HRV | Human Rhinovirus |
| TCID50 | 50% Tissue Culture Infective Dose |
| BD | Brueckner (orbitals With) Double (substitution) (in Electron Correlation) |
| ELMO | Energy-localized Molecular Orbital |
| MFAG | Medical First Aid Guide For Use In Accidents Involving Dangerous Goods |
| CGCP | Canadian Global Change Program |
| MCTDH | Multiconfigurational Time-dependent Hartree (theory) |
| WRV | Water Retention Value [of Cellulose Pulps For Paper Manufacture] |