| Acronym | Meaning |
| NTB | Nonorthogonal Tight-binding |
| GSMT | Giant Segmented Mirror Telescope |
| HHG | High-order Harmonic Generation |
| ELG | Emission-line Galaxy |
| MSO | Maximum Similarity (spin) Orbital |
| SXES | Soft X-ray Emission Spectroscopy |
| SAGE | Serial Analysis Of Gene Expression |
| GIT | Gastrointestinal Tract |
| CAMM | Computer-aided Molecular Modeling |
| GLAO | Generalized Localized Ao |