| Acronym | Meaning |
| MCY | Matsuoka-Clementi-Yoshimine (potential Function) |
| ACAR | Angular Correlation Of Annihilation Radiation |
| TO | Topological Orbital (in Graph Theory Of Molecules) |
| SIMR | Swedish Institute For Metals Research |
| BOVB | Biorthogonal Valence Bond |
| EGBD | Extrinsic Grain Boundary Dislocation |
| NCLAN | National Crop Loss Assessment Network |
| EVA | Extravehicular Activity (related To Spacecraft) |
| LMDPE | Linear Medium Density Polyethylene |
| LTTS | Low-Temperature Thermal Separation (for Waste Soil Treatment) |