| Acronym | Meaning |
| FPCLM | Flat Plate Contained Liquid Membrane |
| ISS | Intermediate Solid Solution |
| CEA | Cost-Effectiveness Analysis |
| USAN | US Adopted Names (for Drugs) |
| NIRE | National Institute For Resources And Environment |
| PUCHF | Perturbed Uncoupled Hartree-Fock |
| CJII | Canadian Joint Implementation Initiative [with Regard To Greenhouse Gas Control] |
| NPTN | National Pesticide Telecommunications Network |
| QDM | Quadrature Discretization Method (in Electron Transport Properties Calcns.) |
| FIM-APS | Field Ion Microscopy-atom Probe Spectroscopy |