| Acronym | Meaning |
| HRAC | Herbicide Resistance Action Committee |
| ENMR | Electrophoretic NMR |
| MGMT | O6-methylguanine-DNA Methyltransferase |
| TO | Topological Orbital (in Graph Theory Of Molecules) |
| MWM | Morris Water Maze |
| MON | Motor (method) Octane No. |
| VEEH | Variable Electronegativity Extended Hueckel Method |
| AOIPS | Atmospheric And Oceanographic Information Processing System |
| WMAC | Waste Minimization Assessment Center |
| MARS | Membrane Anaerobic Reactor System |