| Acronym | Meaning |
| RAS | Renin-angiotensin System |
| NMDR | Nuclear Magnetic Double Resonance |
| ISPAC | International Society For Polycyclic Aromatic Compounds |
| ANPP | 4-azido-2-nitrophenyl Phosphate |
| INEEL | Idaho National Engineering And Environmental Laboratory |
| ARRP | Ammonia Removal And Recovery Process |
| ESP | Elimination Of Solvation Procedure |
| VSEP | Vibratory Shear Enhanced Process |
| PSC | Polar Stratospheric Clouds (in Antarctic) |
| BDH | British Drug House |