| Acronym | Meaning |
 | DI | Direct Injection (engine; Diesel) |
 | LISA | Lander For Ion-selective Analysis |
 | CC | Coupled-cluster (quantum Calcn. Method) |
 | UDI | Utility Data Institute (power Generation) |
 | FVRCI | Full Valence Rydberg Configuration Interaction |
 | MUCS | Minimum-uncertainty Coherent States (wave Functions) |
 | PBP | Penicillin Binding Protein |
 | LEEM | Low-energy Electron Microscopy |
 | FANES | Furnace Atomization Non-thermal Emission Spectrometry |
 | IMO | Intermolecular Mol. Orbital |