| Acronym | Meaning |
| HDT | Heat Deflection Temperature |
| SEDM | State/EPA Data Management |
| PE | Population Equivalent (in Wastewater Treatment) |
| ELF | Extremely Low Frequency |
| AOX | Adsorbable Organohalogens |
| TON | Threshold Odor Numbers |
| AGMA | American Gear Manufacturers Association |
| TAMS | Toxic Air Monitoring System (US EPA) |
| APL | Acute Promyelocytic Leukemia |
| UFF | Universal Force Field |