| Acronym | Meaning |
| GLC | Ground Level Concentration |
| CAG | Continental-arc Granitoids |
| MUSAC | Measurement Uncertainty Software In Analytical Chemistry |
| FAO | Floating Atomic Orbital |
| TRANES | Time-resolved Area Normalized Emission Spectroscopy |
| RMP2 | Restricted Moeller-Plesset Second-order (perturbation Theory) |
| FEMP | Federal Energy Management Program |
| LEO | Lateral Epitaxial Overgrowth |
| MIESR | Matrix Isolation Electron Spin Resonance |
| QMD | Quantum Molecular Dynamics (for Calcns. On The Dynamics Of A Quantum Particle Coupled To A Classical Many-body System) |