| Acronym | Meaning |
| UCC(N) | Unitary Coupled-cluster [truncated To Nth Order] |
| BEST | Bare Essentials Of Surface Transfer |
| ESCPM | Electrochemical Scanning Probe Microscopy |
| CBD | Chronic Beryllium Disease |
| WRC | Water Resources Council |
| ASDES | Aircraft Sensor Data For The Earth Sciences |
| AXAF | Advanced X-ray Astrophysics Facility |
| FVVM | Finite Volume Variational Method (for Mol. Calcns.) |
| DECC | Diethylcarbamyl Chloride |
| WDF | Wigner Distribution Function (in Study Of Quantum Dynamics) |