| Acronym | Meaning |
| HATR | Horizontal Attenuated Total Reflection |
| CCBA | Coupled-channel Born Approximation |
| FGH | Fourier-grid Hamiltonian |
| SOLSTICE | Solar Stellar Irradiance Comparison Experiment |
| LSE | Liquid/solid Extraction |
| LACO | Linearized Atomic Cell Orbital (in Energy-band Calcn.) |
| CTC | Charge-transfer Complex |
| SDIM | Scaled Diatomics-in-molecules |
| CSHO | Compliance Safety & Health Officer |
| EML | Environmental Mutational Load |