| Acronym | Meaning |
| SAC-CI | Symmetry-adapted Cluster Configuration Interaction (theory For Wave-function Expansion) |
| CEN | Comite Europeen De Normalization |
| BTUGA | Bonded Tableau Unitary Group Approach |
| BSG | Borosilicate Glass |
| NODS | NASA Ocean Data System |
| DWT | Discrete Wavelet Transform |
| AWRE | Atomic Weapons Research Establishment |
| BRS | Bibliographic Retrieval System |
| BIIR | Brominated Isobutene-isoprene Rubber |
| CRL | Certified Reporting Limit |