| Acronym | Meaning |
| RACM | Reasonably Available Control Measures |
| EPV | Exclusion-principle Violating |
| EBI | Equivalent Background Illumination |
| DRAWS | Dipolar Recoupling With A Windowless Sequence |
| CEI | Cation Exchange Index |
| EMEFS | Eulerian Model Evaluation Field Study |
| POHC | Principal Organic Hazardous Constituents |
| TICS | Time Reversal Invariant Closed Shell (type Of Hartree-Fock Wave Function) |
| FABP | Fatty Acid-binding Protein |
| SCIA | Semiclassical Impact Approxn. (in Ionizing At. And Mol. Collision Calcns.) |