| Acronym | Meaning |
| SETB | Semiempirical Tight Binding |
| NDLM | Nondiagonal Lagrange Multiplier |
| HWGTF | Hazardous Waste Groundwater Task Force |
| PSI | Pounds Per Square Inch |
| ISLSCP | International Satellite Land Surface Climatology Project |
| CNTD | Chemical Nucleated Thermal Deposition |
| PRV | Pseudorabies Virus |
| HCMOS | High-density Complementary Metal-oxide Semiconductor |
| EBA | Expanded Bed Adsorption |
| LALA | Large Area Lyman Alpha |