| Acronym | Meaning |
| SUMER | Solar UV Measurements Of Emitted Radiation |
| PEMFC | Polymer Electrolyte Membrane Fuel Cell |
| HSOS-CCSD | High-spin Open-shell-CCSD |
| AGCM | Atmospheric General Circulation Model |
| PCI-X | Parametrized Configuration Interaction (with Parameter) X |
| IAQP | Indoor Air Quality Program |
| SSULI | Special Sensor Ultraviolet Limb Imager |
| LMXB | Low-mass X-ray Binaries |
| ATA | Anaerobic Toxicity Assay |
| CIRES | Cooperative Institute For Research In Environmental Sciences |