| Acronym | Meaning |
| IUGG | International Union Of Geodesy And Geophysics |
| AEPS | Auger Electron Appearance Potential Spectroscopy |
| CMSA | Consolidated Metropolitan Statistical Area |
| ECHO | European Community Host Organization |
| WSHS | Watershed Hydrologic System |
| IIW | International Institute Of Welding |
| CAC | Continuous Annular Chromatograph |
| ETV | Electrothermal Vaporization |
| HPM | Hole-potential Model (in Calcn. Of Mol. Excited States) |
| TAL | Threshold Ambient Level |