| Acronym | Meaning |
| LUMO | Lowest Unoccupied Molecular Orbital |
| FAES | Flame Atomic Emission Spectroscopy |
| METAALICUS | Mercury Experiment To Assess Atmospheric Loading In Canada And The US |
| PTA | Packed Tower Aeration |
| RCCSD | (partially) Restricted CCSD |
| RSC | Relative Source Contribution |
| EFTC | European Fluorocarbon Technical Committee |
| MFO | Mixed-function Oxidase |
| SCRF | Self-consistent Reaction Field |
| ALCAM | Activated Leukocyte Cell Adhesion Molecule |