| Acronym | Meaning |
| IIW | International Institute Of Welding |
| AE-CI | All Electron-configuration Interaction |
| APO B | Apolipoprotein B |
| EMBL | European Molecular Biology Laboratory |
| EOR | Enhanced Oil Recovery |
| ANR | Adiabatic Nuclear Rotation (in Calcns. On Mol. Collisions) |
| GC-MS | Gas Chromatography-mass Spectrometry |
| ISST | International Subcommission On Stratigraphic Terminology |
| SQG | Small Quantity Generator |
| CDM | Clean Development Mechanism |