| Acronym | Meaning |
| DOTS | Digital-optical Technology System |
| NLTE | Non-local Thermodynamic Equilibrium |
| GHO | Generalized Hybrid Orbital (ao) |
| HRS | Hazard Ranking System |
| MSA | Metropolitan Statistical Area |
| CAST | CERN Axion Solar Telescope |
| LVBS | Linear Variational Basis Set (formalism In Calcns. On Scattering) |
| CAN | Ceric Ammonium Nitratepar |
| DFM | Dynamic Force Microscopy |
| GSAC | Generalized Symmetry Adapted Cluster (theory) |