| Acronym | Meaning |
| FSMRCCSD | Fock Space Multireference Coupled Cluster (with) Single (and) Double Excitations |
| AKAP | A-kinase Anchoring Protein |
| AEES | Auger Electron Emission Spectroscopy |
| AMSR | Advanced Microwave Scanning Radiometer |
| TBBA | Tightly-bound-on-the-bond Approxn. (band Structure Crystal) |
| SWKB | Supersymmetric Wentzel-Kramers-Brillouin (quantum Method) |
| SIRMO | Senior Information Resource Management Officer |
| TOP | Trioctyl Phosphate |
| GRGL | Groundwater Residue Guidance Level |
| PMAD | Power Management And Distribution (system) (of Space Station) |