| Acronym | Meaning |
| GC-MS | Gas Chromatography-mass Spectrometry |
| ODU | Optical Density Units |
| NEBD | Nonequilibrium Brownian Dynamics |
| FBCB | Fixed Bed Circulating Bioreactor (for Wastewater Treatment) |
| QLCPMET | Quasilinearized Coupled-pair-many-electron Theory |
| TCDE | Two-center Dirac Equation |
| SWAN | Solar Wind Anisotropies |
| CEFIC | Associazione Europea Dell'industria Chimica |
| CD | Coulomb Dipole (in Electron-atom Impact Ionization Calcns.) |
| ICAM | Intercellular Adhesion Molecule |