| Acronym | Meaning |
| GIOS | Generalized Infinite Order Sudden |
| NIRMS | Noble Gas-ion Reflection Mass Spectrometry |
| GCFR | Gas-cooled Fast Reactor |
| QLUC | Quasimolecular Large Unit Cell (model For Electronic-structure Calcns. On Solids) |
| ESE | Extended-surface Electrolysis |
| ARPUS | Angle-resolved Ultraviolet Photoelectron Spectroscopy |
| CNRF | Cold Neutron Research Facility |
| AS | Air Stripping |
| BCPC | British Crop Protection Council |
| FSM | Folded-sheet Mesoporous Material |