| Acronym | Meaning |
| PHWR | Pressurized Heavy Water Reactor |
| SORC | Strong Off-resonant Comb |
| JIS | Japan Industrial Standard |
| DIOS | Desorption-ionization On Silicon |
| ORBIT | On-line Retrieval Of Bibliographic Information Timesharing |
| SPARC | Stratospheric Processes And Their Role In Climate |
| CALS | Cloud And Aerosol Lidar System |
| LD-KGC | Linz-Donawitz-Kawasaki Gas Control (steel Converter Furnaces) |
| MOF | Metal-organic Framework Compoundpar |
| ID | Isotope Dilution |