| Acronym | Meaning |
| RCISD | Restricted CI (with) Single (and) Double (excitations) |
| CIBS | Corrections To An Incomplete Basis Set (a Perturbation Theory) |
| HFSLM | Hollow-fiber Supported Liquid Membrane |
| MDH | Malate Dehydrogenase |
| AUFS | Absorbance Units Full Scale |
| DIOS | Direct Iron Ore Smelting |
| FNAL | Fermi National Accelerator Laboratory |
| GPCR | G-protein-coupled Receptor |
| RANTES | Regulated On Activation Normal T Cell Expressed And Secreted |
| PIES | Pollution Prevention Information Exchange System |