| Acronym | Meaning |
| SLBO | Strictly Localized Bond Orbital |
| XSW | X-ray Standing Wave |
| TROLL | Transmitter And Receiver Of Laser Light |
| IVO | Improved Virtual Orbital |
| BFEM | Bright Field Electron Microscopy |
| DWS | Drinking Water Standard |
| EWPCA | European Water Pollution Control Association |
| AAQS | Ambient Air Quality Standard (USEPA) |
| CFS | Coherent Forward Scattering |
| ARAR | Applicable Or Relevant And Appropriate Standards, Limitations, Criteria, And Requirements |