| Acronym | Meaning |
| TILIBS | Time-integrated Laser Induced Breakdown Spectroscopy |
| AWRA | American Water Resources Association |
| ANO | Approximate Natural Orbital |
| GHL | Generalized Heitler-London |
| WIPP | Waste Isolation Pilot Plant (for Nuclear Wastes) |
| BSRT | Biological Solids Retention Time |
| AGID | Agar Gel Immunodiffusion |
| HSGC | Headspace Gas Chromatography |
| LCDAO | Linear Combination Of Distorted Atomic Orbitals |
| PANH | Polycyclic Aromatic Nitrogen Heterocycle |