| Acronym | Meaning |
| CHMO | Constrained Hartree-Fock Orbitals |
| MEKP | Methyl Ethyl Ketone Peroxide |
| ADA | N-(2-acetamido) Iminodiacetic Acid |
| IEM | Immunoelectron Microscopy |
| NDA | New Drug Application |
| MGVB | Modified Generalized Valence Bond |
| BBFM | Bond-bending Force Model (for Phonon Calcns.) |
| QMRE | Quantum Mechanical Resonance Energy |
| FO-ECP | Frozen Orbital-effective Core Potential |
| ESR | Electroslag Refining |