| Acronym | Meaning |
| NREL | National Renewable Energy Laboratory (formerly SERI) |
| FTHF | Finite-temperature Hartree-Fock |
| CBA | Cost-Benefit Analysis |
| NME | New Molecular Entity |
| GRNN | Generalized Regression Neural Network |
| HOLZ | Higher Order Laue Zone |
| LHSF | Local Hyperspherical Surface Functions (in Quantum Calcns. On Reactive Scattering) |
| NWIS | Nuclear Weapons Identification System |
| START | Strategic Arms Reduction Treaty |
| LAST | Lowest Anticipated Service Temperature |