| Acronym | Meaning |
| FMO | Floating Molecular Orbital |
| NEDT | Noise Equivalent Delta T |
| EGM | Electron Gas Model |
| LECD | Lifetime Equivalent Constant Dose |
| GRINSCH | Graded-index Separate Confinement Heterostructure |
| PFS | Planetary Fourier Spectrometry |
| HGRF | Human Growth Hormone-releasing Factor |
| IOSA | Infinite Order Suden Approxn. (for Mol. Scattering Calcns.) |
| MOVB | MO-valence Bond |
| TDCP-HFR | Time-dependent Coupled Perturbed Hartree-Fock-roothan Approach |