| Acronym | Meaning |
| FIT | Field Investigation Team (US EPA) |
| ANITA | Ammonia And Nitrification Analyzer |
| HGF | Hepatocyte Growth Factor |
| RSM | Reduction Symmetry Method (in Crystal Field Theory) |
| KCS | K-matrix Centrifugal Sudden (in Mol.-scattering Theory) |
| MCS | Multiple Cloning Site |
| 3DWQM | Chesapeake Bay Three Dimensional Time Variable Water Quality Model |
| SF1 | Steroidogenic Factor 1 |
| DTDP | Ditridecyl Phthalate |
| ARC | AIDS-related Complex |