| Acronym | Meaning |
| GMQDT | Generalized Multichannel Quantum Defect Theory |
| BPCC | 2,2'-bipyridinium Chlorochromate |
| SCAUA | Semiclassical Approxn. United Atom |
| GEIS | Generic Environmental Impact Statement |
| AMPD | 2-amino-2-methyl 1 |
| JESS | Joint Expert Speciation System |
| EO | Ethylene Oxide |
| AGMA | American Gear Manufacturers Association |
| CSA | Centrifugal Sudden Approxn. (in Scattering Calcns.) |
| QRPA | Quadratic Random Phase Approxn. |