| Acronym | Meaning |
| MAST | Mega-Amp Spherical Tokamak |
| BDTT | Brittle-to-ductile Transition Temperature |
| RTP | Room Temperature Phosphorescence |
| PCILO | Perturbative Configuration Interaction Using Localized Orbitals |
| MSIA | Mass Spectrometric Immunoassay |
| BIF | Banded Iron-formation |
| APSTNG | Associated-particle Sealed-tube Neutron Generator |
| CWF | Coal-water Fuel |
| PSEP | Polyhedral Skeletal Electron Pair (for Metal Clusters) |
| SLAIS | SAW Liquid Analyzing And Identifying System |