| Acronym | Meaning |
| CAW | Carbon Arc Welding |
| SEE | Standard Error Of Estimate |
| CAI | Carcinogenic Activity Indicator |
| OPCW | Organization For Prohibition Of Chemical Weapons |
| MZDO | Modified Zero Differential Overlap |
| BDNF | Brain-derived Neurotrophic Factor |
| BEBO | Bond Energy Bond Order Method |
| ECR | Electron Cyclotron Resonance |
| PIMC | Path-integral Monte-Carlo |
| LVBS | Linear Variational Basis Set (formalism In Calcns. On Scattering) |