| Acronym | Meaning |
| GMQDT | Generalized Multichannel Quantum Defect Theory |
| DAS | Direct Absorption Spectroscopy |
| SME | Solar Mesosphere Explorer |
| RSC | Risk Specific Concentration |
| ASTER | Acceptable Short-term Exposure Range |
| RE | Recoupled States (in Orbiting Resonances Calcns. In Atom-mol. Inelastic Scattering) |
| AMPS | 2-acrylamido-2-methylpropanesulfonic Acid [15214-89-8] |
| CCSDT | Coupled Cluster With Single |
| WQMP | Water Quality Management Plan |
| UVCS | UV Coronagraph Spectrometer |