| Acronym | Meaning |
| AWWA | American Water Works Association |
| CTBT | Comprehensive Test Ban Treaty |
| ATM | Aerosol Trajectory Model |
| NEMD | Non-equilibrium Molecular Dynamics |
| CCCC | Complex-coordinate Coupled-channel (method In Calcns. On Rotational And Vibrational Predissocn.) |
| TROLS | Terrestrial And Riparian Organisms |
| NDT | Nondestructive Testing |
| TBN | Total Base Number |
| AVCC | Average Carbonaceous Chondrites |
| PXRD | Powder X-ray Diffraction |