| Acronym | Meaning |
| RLF | Radially Localized (wave) Function |
| ICR | Information Collection Rule |
| CCPE | Charge Core Potential Energy Method (for Conformational Analysis) |
| UDDS | Urban Dynamometer Driving Schedule |
| GWPC | Ground Water Protection Council |
| MCRPA | Multiconfigurational Random Phase Approxn. |
| ASM | Autosampler Module |
| SCPF | Self-consistent Polarization Field Method |
| UMO | Unmodified Molecular Orbital |
| IMPEACH-MBC | Improved Performance Accordion Heteronuclear Multiple-bond Correlation |