| Acronym | Meaning |
| WCUB | Wang Chang-Uhlenbeck-de Boer (quantum-mech. Relation In Rotational Relaxation Calcn.) |
| WEFA | Window Evolving Factor Analysis |
| IPVD | Ionized Physical Vapor Deposition |
| AMESA | Adsorption Method For Sampling Of Dioxins |
| QMO | Quaternionic Molecular Orbital Method |
| DMRG | Density Matrix Renormalization Group (quantum Calcn. Method) |
| MFE | Modulated Free Electron Orbital Method |
| EP | Electrostatic Precipitator |
| ICVT | Improved Canonical Variational Theory |
| PVF | Poly(vinyl Fluoride) |