| Acronym | Meaning |
| HWS | Hazardous Waste Site |
| OVOS | Optimized Virtual Orbital Space Approximation (for Correlated Calcns.) |
| AESA | Association Of Environmental Scientists And Administrators |
| NMJ | Neuromuscular Junction |
| LTAVD | Low Temperature Arc Vapor Deposition |
| SCD | Sickle Cell Disease |
| OFMSW | Organic Fraction Municipal Solid Waste |
| IRC | Intrinsic Reaction Coordinate |
| APU | Acid Purification Unit (acid Recovery System) |
| NBS | Nucleotide-binding Site |