| Acronym | Meaning |
| ELG | Emission-line Galaxy |
| ACANTO | Activation Analysis For Toxicology |
| VNS | Vicarious Nucleophilic Substitution |
| CENSA | Collaborative Electronic Notebook Systems Association |
| MLS | Microwave Limb Sounder |
| EFTEM | Energy-filtering Transmission Electron Microscopy |
| CXC | Chandra X-ray Center |
| REMS | Reflection Mass Spectrometry |
| BSSE | Basis-set Superposition Error |
| IOSRR | Infinite Order Sudden Rigid-rotor Approximation |