| Acronym | Meaning |
| TLM | Triple Layer Model (of Adsorption) |
| USPHS | United States Public Health Service |
| ERMM | Effective R-matrix Model (in Reactive Electron-mol. Scattering) |
| HDR | Hot Dry Rock (geothermal Reservoir) |
| TDDB | Time Dependent Dielectric Breakdown |
| ROSDAL | Representation Of Organic Structure Description Arranged Linearly |
| BCG | Bacillus Calmette-Guerin |
| HAP | Hazardous Air Pollutants |
| MLD | Magnetic Linear Dichroism |
| MOEXP | Morse Oscillator Exponential Repulsion Potential |