| Acronym | Meaning |
| X-SAR | X-Band Synthetic Aperture Radar |
| SUMER | Solar UV Measurements Of Emitted Radiation |
| CONFU | Conference On Fair Use |
| DIT | Diffusive Interfacial Transport |
| PEFR | Peak Expiratory Flow Rate (lung Function) |
| AURA | Association Of Universities For Research In Astronomy |
| FCSA | Frequency-corrected Sudden Approxn. (in Mol. Collision Calcns.) |
| HLAO | High-lying Antibonding Orbital |
| LNDO | Local Neglect Of Differential Overlap |
| BCC | Bioaccumulative Chemicals Of Concern |