| Acronym | Meaning |
| FOPPA | First-order Polarization Propagator Approach |
| VBHL | Valence Bond Heitler-London (wave Function) |
| IGOR | Interactive Generation Of Organic Reactions |
| HOE | Holographic Optical Element |
| PHD | P-helicity Decoupling Scheme (p=momentum) |
| BPDA | 3,3',4,4'-biphenyltetracarboxylic Dianhydride |
| CTCF | Collisional Time Correlation Function (in Quantum Calcns. On Mol. Inelastic Collisions) |
| PDGF | Platelet-derived Growth Factor |
| METC | Morgantown Energy Technology Center |
| CC-PV(D,T,Q) | Correlation-consistent Polarized (double, Triple, Or Quadruple)-split Valence Basis Set |