| Acronym | Meaning |
| CV | Calibrated Volume |
| HEED | High Energy Electron Diffraction |
| LCPLS | Logcontrast Partial Least Squares |
| WSIA | Water Supply Improvement Association |
| RBS | Rutherford Backscattering Spectrometry |
| ALAU | Delta-aminolevulinic Acid Dehydratase In Urine (lead Poisoning Indicator) |
| RATL | Risk Analysis Testing Laboratory |
| FSR | Free Spectral Range |
| ISM | Intersecting Spheres Model (for Electronic-structure Calcns.) |
| PEAD | Polietileno De Alta Densidad |