| Acronym | Meaning |
| MAO | Modified Atomic Orbital |
| TCF | Totally Chlorine-free [in Pulp Industry] |
| DGS | DiGeorge Syndrome |
| MOSMO | Maximum Overlap Symmetry Molecular Orbital |
| AIJ | Activities Implemented Jointly [related To Greenhouse Gas Control] |
| VSV | Vesicular Stomatitis Virus |
| FECAP | Ferroelectric Capacitor |
| RIA | Reactivity Initiated Accident |
| TGVBA | Target Generalized Valence Bond Approximation |
| VDZ | Valence Double Zeta |