| Acronym | Meaning |
| RAN | Residual Acrylonitrile |
| TNN-TB | Third Neighbor Nonorthogonal (basis) Tight Binding |
| MNDO-HE | Modified Neglect Of Diatomic Overlap-half Electron |
| TCGF | T Cell Growth Factor |
| CSA | Centrifugal Sudden Approxn. (in Scattering Calcns.) |
| FTIR | Fourier Transform Infrared Spectroscopy |
| LDT | Light Duty Truck |
| CPE | Cloud Point Extraction |
| CMASN | Calcium Oxide-magnesia-alumina-silica-sodium Oxide |
| DWRD | Drinking Water Research Division (EPA) |