| Acronym | Meaning |
| ASTHO | Association Of State And Territorial Health Officers |
| NDBEPR | Nitrification-denitrification Biological Excess Phosphorus Removal |
| DQ-RSPT | Double And Quadruple Excitation Diagrams In Rayleigh-Schroedinger Perturbation Theory |
| ROESY | Rotating-frame Overhauser Enhancement Spectroscopy |
| EMSL | Environmental Monitoring Systems Laboratory |
| DNO | Delocalized Natural Orbital |
| HSOS-CCSD | High-spin Open-shell-CCSD |
| DCASV | D.c. Anodic Stripping Voltammetry |
| MERD | Mine Emergency Responsiveness Development |
| HESI | Health And Environmental Sciences Institute |