| Acronym | Meaning |
| OMO | Orthonormal Molecular Orbital |
| CC/RVDF | Codex Committee On Residues Of Veterinary Drugs In Food |
| PEPICO | Photoelectron-photoion Coincidence Spectroscopy |
| SS-OFMSW | Source Sorted Organic Fraction Of Municipal Solid Waste |
| SAAP | Spin Adapted Antisymmetrized Product (in MC-SCF Theory) |
| RTP | Rapid Thermal Processing |
| LVAD | Left Ventricular Assist Device |
| MACS | Modified Atomic Charge Superposition (in Calcns. On Atom-surface Scattering Potentials) |
| FEM | Field-Electron Microscopy |
| RAPRA | Rubber And Plastics Research Association |