| Acronym | Meaning |
| TDO | Truncated Diatomic Orbital (a MO) |
| HFF | Hellmann-Feynman Force Approximation |
| CCC | Convergent Close Coupling |
| SCRAM | Short-Cut Risk Assessment Method |
| PFBC | Pressurized Fluidized-bed Combustion (in Energy Technology) |
| PVAL | Polyvinyl Alcohol |
| BADGE | Bisphenol A Diglycidyl Ether |
| BEA | Bureau Of Economic Analysis |
| AACI | Association Of American Cancer Institutes |
| IDOE | International Decade Of Ocean Exploration |