| Acronym | Meaning |
| DTCI | 3,3'-diethylthiacarbocyanine Iodide |
| EBIR | Energy Based Integral Retention (in Electronic-structure Calcns.) |
| NEROS | Northeast Regional Oxidant Study |
| NCEH | National Center For Environmental Health |
| CPVC | Critical Pigment Volume Concentration |
| HTHS | High-temperature High-shear |
| BMP | Biochemical Methane Potential |
| FMAP | Fano-Macek Alignment Parameter (in Electron-impact Excitation Of Ions) |
| NLDA | Nonlocal Density Approxn. |
| MLPCA | Maximum Likelihood Principal Component Analysis |