| Acronym | Meaning |
| HMS | High-manganese Silicide (semiconductor Thermoelectric Material) |
| LMREE | Light-medium Rare Earth Element(s) |
| GMISS | Gridded Model Information Support System |
| APIG | Antisymmetrized Product (of) Identical Geminals |
| EAL-MCDF | Extended Average Level-(relativistic) Multiconfiguration Dirac-Fock |
| PPLN | Periodically Poled Lithium Niobate |
| WQR | Waste Form Qualification Report |
| MRP | Multidrug Resistance Protein |
| NAMF | Non-asbestos Mineral Fibers |
| STREAM | Stream Transport And Agricultural Runoff Of Pesticides For Exposure Assessment Methodology |