| Acronym | Meaning |
| HWRAP | Hazardous Waste Remedial Actions Program |
| DHS | Double Heterostructure |
| BIG/GT | Biomass Gasifier/gas Turbine (for Steam/electricity Cogeneration) |
| MEI | Maximally Exposed Individual |
| CEPP | Chemical Emergency Preparedness Plan |
| SCA | Semiclassical Approximation |
| EKMA | Empirical Kinetic Modeling Approach (in Air Pollution) |
| HCCI | Homogeneous Charge Compression Ignition |
| CNS | Central Nervous System |
| ACSTM | Alternating Current Scanning Tunneling Microscopy |