| Acronym | Meaning |
| CCSC | Charge And Configuration Self-consistency |
| HUDF | Hubble Ultra Deep Field |
| NPS | National Park Service (US) |
| FSR | Free Spectral Range |
| EBW | Electron Beam Welding |
| AACVD | Aerosol-assisted Chemical Vapor Deposition |
| PSD | Postsynaptic Density |
| RSC | The Royal Society Of Chemistry |
| QSERR | Quantitative Structure-enantioselective Retention Relationships |
| RODS | Records Of Decision System |