| Acronym | Meaning |
| EPCE | Effective Pair Correlation Energy Method |
| CFE | Colony-forming Efficiency |
| HF | Heart Failure |
| UGF | Unitary-group Formulation (in Many-body Quantum Theory) |
| ALMR | Advanced Liquid Metal Reactor |
| MP2-R12 | MP2 Theory With Terms Linear In Interelectronic Distance (r12) |
| NRIOSA | Nonreactive Infinite-order Sudden Approxn. |
| TIA | Transient Ischemic Attack |
| IZA | International Zeolite Association |
| RHFS | Restricted Hartree-Fock-Slater |