| Acronym | Meaning |
| MIAR | Mass Isotopomer Abundance Ratio |
| LAC | Liquid Adsorption Chromatography |
| SAB | Substratum-aerated-biofilm Reactor |
| ECRR | Energy-corrected Rigid-rotor Approximation |
| RSM | Reduction Symmetry Method (in Crystal Field Theory) |
| EUROTRAC | European Experiment Of Transport And Transformation Of Environmentally Relevant Trace Constituents In The Troposphere Over Eur |
| DCMD | Direct Contact Membrane Distillation |
| MBE | Many-body Expansion (in Mol. Potential Energy Surface Calcn.) |
| NCCAM | National Center For Complementary And Alternative Medicine |
| ITC | Isothermal Titration Calorimetry |