| Acronym | Meaning |
| ECAE | Equal Channel Angular Extrusion |
| IA/PA | Intermediate Alky./partial Alky. |
| GEMS | General Energy And Material Balance System [model] |
| INEPT | Insensitive Nuclei Enhanced By Polarization Transfer |
| PONA | Paraffins, Olefins, Naphthalenes, And Aromatics (in Petroleum Analysis) |
| MSK | Muscular-skeletal Effects |
| IMA | Ion Microanalysis |
| TSFZ | Traveling Solvent Floating Zone |
| VGAO | Variable Gage Atomic Orbital |
| UHF | Unrestricted Hartree-Fock |