| Acronym | Meaning |
| HTU | Height Of Transfer Unit (in Packed Tower Aeration System) |
| CDK | Cyclin Dependent Kinase |
| ERDAS | Earth Resource Data Analysis System |
| HVLP | High-volume Low Pressure [spray Gun] |
| RSNA | Renal Sympathetic Nerve Activity |
| SHRIMP | Sensitive High Mass Resolution Ion Microprobe |
| FGD | Flue Gas Desulfurization |
| CEI | Cation Exchange Index |
| BAFF | B-cell Activating Factor |
| FSR | Fixed Salt Recovery (in Regeneration Of Blowdown From HCN Scrubber) |