| Acronym | Meaning |
| CMA | Cylindrical Mirror Analyzer |
| DOM | Dissolved Organic Matter |
| OCE-DF | One-center Expansion Dirac-Fock |
| ECMWF | European Center For Medium Range Weather Forecast |
| CIRA | COSPAR International Reference Atmosphere |
| ADCC | Antibody-dependent Cellular Cytotoxicity |
| EPSP | Excitatory Postsynaptic Potential |
| ACL | Average Contaminant Level |
| CAD | Coronary Artery Disease |
| HSF | Hiller-Sucher-Feinberg (equation For Calcn. Of Spin Densities And Charge Densities In Mols.) |