| Acronym | Meaning |
| FP | Fluorescence Polarizationpar |
| IMHEX | Internally Manifolded Heat Exchanger (molten Carbonate Fuel Cell Design) |
| HETA | Hazard Evaluation Technical Assistance Branch (NIOSH) |
| DIBL | Drain Induced Barrier Lowering |
| WQCDS | Water Quality Criteria Documents |
| SBR | Sequential Batch Reactor |
| EIR | Environmental Impact Report |
| TBBA | Tightly-bound-on-the-bond Approxn. (band Structure Crystal) |
| HSF | Hiller-Sucher-Feinberg (equation For Calcn. Of Spin Densities And Charge Densities In Mols.) |
| BCR | Bureau Communitaire De Reference (of The CEE = Commission Of European Communities |