| Acronym | Meaning |
| SCRPA | Self-consistent Random Phase Approximation |
| IVC | In Vitro Culture |
| LSDXS-SIC | Local-spin-density (with) Screened Exchange (and) Self-interactiond Correction |
| CAI | Conodont Alteration Index |
| QCDL | Quenched Cavity Dye Laser |
| OWG | Optical Waveguide |
| APLR | Annual Pollutant Loading Rate |
| CDNA | Complementary DNA |
| DIP | Document Image Processing |
| HEC | Human Equivalent Concentration |