| Acronym | Meaning |
| FASST | Fast Scan Submillimeter Spectroscopic Technique |
| MRCEPA | Multireference Coupled-electron-pair Approxn. |
| HI | Hydrogen Index |
| NCAM | Neural Cell Adhesion Molecule |
| UFFI | Urea-formaldehyde Foam Insulation |
| WPAC | Working Party On Analytical Chemistry |
| HVT | Hypervirial Theory |
| MP4(SDTQ) | Moeller-Plesset (perturbation Theory To) 4th Order With Single |
| DLVO | Derjaguin, Landau, Verwey, And Overbeek Theory |
| ANA | Adiabatic Nuclei Approximation (in Electron-mol. Scattering) |