| Acronym | Meaning |
| WPCF | Water Pollution Control Federation |
| CLCR | Creatinine Clearance |
| CCOSM | Chemistry And Circulation Occultation Spectroscopy Mission |
| WCDF | Worse Case Dilution Factor (in Receiving Water) |
| QXRD | Quantitative X-ray Diffraction |
| SIOA | Surface-induced Optical Anisotropy |
| GLIS | Global Land Information System |
| CRAF | Comet Rendezvous Asteroid Flyby |
| TPCA | Toxic Pit Cleanup Act (of California |
| SDO | Shielded Diatomic Orbital |