| Acronym | Meaning |
| MF | Modifying Factor (in Oral RfD) |
| HID | High Interstitial Defect |
| HPIAC | High-performance Immunoaffinity Chromatography |
| TO | Toxic Organic |
| EAS | Extensive Air Shower |
| GOOS | Global Ocean Observing System (IOC) |
| ISIS | Image-selected In Vivo Spectroscopy |
| CBD | Cellulose-binding Domain |
| EIC | Electrostatic Interaction Chromatography |
| CT | Disinfection Concentration Contact Time |