| Acronym | Meaning |
| ADU | Analog-to-digital Unit |
| BDT | Brueckner (with) Double (and) Triple (substitutions) |
| ESCOMPTE | (Experience Sur Site Pour Contraindre Les Modeles De Pollution Atmospherique Et De Transport D'emissions) |
| ANO | Approximate Natural Orbital |
| IRMPD | Infrared Multiphoton Dissociation |
| PTD | Probable Toxic Dose |
| AWI | Air Water Interface |
| TLM | Transmission Line Method |
| SKVP | S-matrix (version Of) Kohn Variational Principle |
| NOM | Natural Organic Matter |