| Acronym | Meaning |
| MDO | Max. Degree Of Order |
| SWA | Slow-wave Activity |
| PETN | Pentaerythritol Tetranitrate |
| DCC | Dextran-coated Charcoalpar |
| HEC | Human Equivalent Concentration |
| MUSAC | Measurement Uncertainty Software In Analytical Chemistry |
| APMI | American Powder Metallurgy Institute |
| PE | Population Equivalent (in Wastewater Treatment) |
| CNMMN | Commission On New Minerals And Mineral Names |
| PAZ | Protective Action Zone |