| Acronym | Meaning |
| HECD | Hall Electrolytic Conductivity Detector |
| AML | ARC Macro Language |
| IWW | Industrial Wastewater |
| SE | Symmetric Eikonal (approxn. In Calcns. On Ion Scattering) |
| CEGB | Central Electricity Generating Board |
| BRI | Building-related Illness |
| FACTS | Facilities And Company Tracking System |
| CAMDS | Chemical Agent Munitions Disposal System |
| RIC | Resource Conservation And Recovery Act Docket Information Center |
| PRBS | Pseudo-random Binary Sequence |