| Acronym | Meaning |
| CSIN | Chemical Substance Information Network |
| PERTCI | Perturbational Configuration Interaction |
| HRBS | High Resolution Rutherford Backscattering |
| SIMBA | Selective Inverse Multiple Bond Analysis |
| RECA | Regional Energy Convergence Approxn. (in Total Energies Calcns.) |
| ASCREV | Anodic Stripping Continuous Recall Enhancement Voltammetry |
| HCC | Hepatocellular Carcinoma |
| IRMP | International Remote Monitoring Program |
| CD | Coulomb Dipole (in Electron-atom Impact Ionization Calcns.) |
| SNCR | Selective Noncatalytic Reduction |