| Acronym | Meaning |
| PIMBE | Plasma-induced Molecular-beam Epitaxy |
| ORCA | Optical Resonance Cavity Analyzer |
| PLID | Pulsed Laser Induced Desorption |
| DOJ | U.S. Department Of Justice |
| NCB | National Coal Board |
| SPARHEED | Spot Profile Analysis Reflection High-energy Electron Diffraction |
| SCN | Suprachiasmatic Nucleus |
| APSTNG | Associated-particle Sealed-tube Neutron Generator |
| ATLL | Adult T-cell Leukemia Lymphoma |
| GRAPE | Global Relationship Assessment To Protect The Environment |