| Acronym | Meaning |
| NLSD | Nonlocal Spin Density (functional Theory) |
| AEP | American Electric Power (USA) |
| CEDIA | Cloned-enzyme Donor Immunoassay |
| EWS | Engineering Workstation |
| AEOS | Advanced Electro-Optical System |
| OCBSE | Orthogonality Constrained Basis Set Expansion Prodedure |
| FFT | Fast Fourier Transform |
| MGA | Modified Glauber Approxn. (in Atom-particle Scattering) |
| GFCR | Gas Filter Correlation Radiometry |
| XGRS | X-ray/gamma-ray Spectrometer |