| Acronym | Meaning |
| HSCR | Hirschsprung Disease |
| HABR | Hybrid Anaerobic Baffled Reactor (for Wastewater Treatment) |
| VMAT | Vesicular Monoamine Transporter |
| GSO | General Spin Orbital |
| TNBS | Trinitrobenzene Sulfonic Acid |
| ARM | Anhysteretic Remanent Magnetization |
| MIES | Maximum Ionicity Excited State (model In Energy Calcn. Of Mols.) |
| HEAST | Health Effects Assessment Summary Tables |
| CBOX | Coulomb-Born With No Exchange |
| SCOWAR | Scientific Committee On Water Research |