| Acronym | Meaning |
| FNA | Fine-needle Aspiration |
| RSAC | Remote Sensing Applications Center (US Forest Service) |
| HAPPS | Hazardous Air Pollutant Prioritization System |
| CLCR | Creatinine Clearance |
| PTEF | Photochem. Thermodynamic Efficiency Factor |
| DCBOX | Distorted Coulomb-Born No-exchange Approxn. |
| SWSV | Square-wave Stripping Voltammetry |
| RHEED | Reflection High-energy Electron Diffraction |
| NAS | Naval Air Station |
| ASGDI | Atmospheric Sampling Glow Discharge Ionization |