| Acronym | Meaning |
| BCO | Bounded Crystal Orbital |
| PSCI | Pseudo Configuration Interaction |
| LCDA MO | Linear Combination Of Donor-acceptor Molecular Orbital Theory |
| WECC | Western European Calibration Cooperation |
| ATBN | Amine Terminated Butadiene Acrylonitrile (rubber) |
| BDT | Best Demonstrated Technology |
| RTP | Research Triangle Park |
| SWEPP | Stored Waste Examination Pilot Plant |
| ICSD | Inorganic Crystal Structure Database |
| PMF | Positive Matrix Factorization |