| Acronym | Meaning |
| EHMI | Environmental Hazards Management Institute |
| ONBI | Oligonucleotide Bridge Intercalator |
| BTDC | Before Top Dead Center |
| HGMS | High Gradient Magnetic Separation (for Water Treatment) |
| AFB | Atmospheric Fluidized Bed |
| HVAC | Heating, Ventilating, Air-conditioning |
| IRLG | Interagency Regulatory Liaison Group |
| RSEW | Resistance Seam Welding |
| CFS | Chronic Fatigue Syndrome |
| SCCEH | Self-consistent Charge Extended Hueckel Method |