| Acronym | Meaning |
| OPHF | Orbital-polarized Hartree-Fock |
| SPLP | Synthetic Pptn. Leaching Procedure |
| QCISD(T) | Quadratic CI (with) Single (and) Double (excitations) (and) [triple Excitations Added Perturbatively] |
| ARRP | Acid Rain Research Program |
| SMM | Scanning Magnetic Microscopy |
| CWTC | Chemical Waste Transportation Council |
| LVAD | Left Ventricular Assist Device |
| MDW | Mixed Density Wave |
| MRD-CI | Multireference Determinant Configuration Interaction |
| MWNT | Multiwall Nanotube |