| Acronym | Meaning |
| OMNMHCE | Organic Material Nonmethane Hydrocarbon Equivalent |
| EIL | Electron Injection Layer |
| EELS | Electron Energy Loss Spectroscopy |
| WATR | Water Attenuation By Transverse Relaxation |
| HRSG | Heat Recovery Steam Generator |
| TDDB | Time Dependent Dielectric Breakdown |
| CODIS | Combined DNA Index System |
| FPLMTO | Full-potential Linearized Muffin-tin Orbital |
| AIPM | Analytic Independent-particle Model (in Electron-scattering) |
| ARRP | Ammonia Removal And Recovery Process |