| Acronym | Meaning |
| TC/MS | Thermal Chromatography/mass Spectrometry |
| ERMM | Effective R-matrix Model (in Reactive Electron-mol. Scattering) |
| NHGRI | National Human Genome Research Institute |
| ELF | Electron Localization Function |
| PAK | P21-Activated Kinase |
| OHFS | Optimized Hartree-Fock-Slater |
| MSPC | Multivariate Statistical Process Control |
| HILDA | High-Latitude Exchange/Interior Diffusion-Advection Model |
| YFEGE | Yonei Free-electron-gas Exchange |
| EORCU | European Ozone Research Coordinating Unit |