| Acronym | Meaning |
| IAPA | Independent Asymptotic Pair Approxn. (in Electronic Structure) |
| AHA | American Heart Association |
| NLDFT | Nonlocal Density Functional Theory |
| SPDT | Single-pole Double-throw (switch) |
| ACNK | Al2O3/(CaO + Na2O + K2O) |
| HOCO | Highest Occupied Crystal Orbital |
| QFAA | Quartz Furnace Atomic Absorption |
| ASEMP | Active Sites Environmental Monitoring Program |
| STRP | Short Tandem Repeat Polymorphism |
| MFA | Molecular-field Approximation |