| Acronym | Meaning |
| DMARD | Disease Modifying Antirheumatic Drug |
| IGC | Inverse Gas Chromatog. |
| RMA | Rocky Mountain Arsenal (Colorado) |
| MSUD | Maple Syrup Urine Disease |
| LAH | Lithium Aluminum Hydride |
| CUS | Coordinatively Unsaturated Site |
| LEES | Local Excess-electron State (a Mol.-crystal Wave Function) |
| I-TEQ | International Toxic Equivalent |
| NSO | Natural Spin Orbitals |
| USACE | US Army Corp Of Engineers |