| Acronym | Meaning |
| LULU | Locally Undesirable Land Use |
| ITRS | International Technology Roadmap For Semiconductors |
| SECI | Single Excitation Configuration Interaction |
| HAF | Halogen Acid Furnaces (for Burning Halogenated Wastes |
| MCOPM | Multiconfiguration Optimized Potential Model |
| SPAG | Small Particle Aerosol Generator |
| NACCHO | National Association Of County And City Health Officials |
| DF-OCE | Dirac-Fock One-center Expansion |
| WASP4 | Water Analysis Simulation Program |
| HOC | Hydrophobic Organic Compounds |