| Acronym | Meaning |
| THFA | Target Hartree-Fock Approximation |
| LCGTO-MCP-LS | Linear Combination Of Gaussian-type Orbitals-model Core Potential-local Spin Density |
| JTU | Jackson Turbidity Unit |
| TCXO | Temperature-compensated Crystal Oscillator |
| APD | Avalanche Photodiode |
| RLF | Radially Localized (wave) Function |
| SIMM | Single Inline Memory Module |
| TPP | Triphenyl Phosphate |
| UASBR | Upflow Anaerobic Sludge Blanket Reactor |
| LC | Lethal Concentration |