| Acronym | Meaning |
| ELI | Extra Low Interstitial |
| AWRE | Atomic Weapons Research Establishment |
| TAL | Threshold Ambient Level |
| HCOT | Helically Coiled Open Tube |
| ACQM | Arrangement-channel Quantum Mechanics |
| HAO | Hydrogenic Atomic Orbital |
| DOUBTFUL | Double Quantum Transitions For Finding Unresolved Lines |
| HWIF | Hazardous Waste Incineration Facility Design And Modeling Computer Program |
| BTK | Bruton Tyrosine Kinase |
| TDM | Time-division Multiplexing |