| Acronym | Meaning |
| CFSS | Constant-final-state Spectroscopy |
| HSOS-CCSD | High-spin Open-shell-CCSD |
| CDRP | Carbon Dioxide Research Program (of US Department Of Energy) |
| DCAD | Dietary Cation-anion Difference |
| RSPT | Rayleigh-Schroedinger Perturbation Theory |
| DIT | Diffusive Interfacial Transport |
| ASK | Apoptosis Signal-regulating Kinase |
| LARIS | Laser Ablation And Resonance Ionization Spectroscopy |
| ERCS | Emergency Response Cleanup Services |
| AXS | Anomalous X-ray Scattering |