| Acronym | Meaning |
| LCCSD | Linearized Coupled-cluster (theory With) Single (and) Double (excitations) (in Mol. Potential Calcns.) |
| ISCI | Initial-state Configuration Interaction |
| EPV | Exclusion-principle Violating |
| HIF | Hypoxia Inducible Factor |
| NSF | Near-surface Fractionated (mantle) |
| OVGF | Outer-valence Green Function (for Ionization-energy Calcns.) |
| SNS | Separation Network Synthesis (chemical Engineering Design) |
| CPC | Chemical Protective Clothing |
| GCCP | Global Climate Change Program |
| LAIS | Liquid Alloy Ion Source |