| Acronym | Meaning |
| N-BOD | Nitrogenous Biochemical Oxygen Demand |
| HPHF | Half-projected Hartree-Fock Model |
| AUSB | Aerobic Upflow Sludge Blanket |
| BTB | Bromothymol Blue |
| AITP | Affinity Isotachophoresis |
| ATBN | Amine Terminated Butadiene Acrylonitrile (rubber) |
| PAO | Pseudo-atomic Orbital |
| CST | Charcoal Sorbent Tubes |
| MERD | Mine Emergency Responsiveness Development |
| VIMOX | Volume Identical Metal Oxidation |