| Acronym | Meaning |
| HELP | Heuristic Evolving Latent Projection |
| SEC | Scaled External Correlation (extrapolation Method In CI Calcn.) |
| ES | Energy Sudden (approxn. In Scattering Calcns.) |
| SVP | Schwinger Variational Principle |
| LEP | Light Emitting Polymer |
| RSEW | Resistance Seam Welding |
| GSAS | Generalized Structure And Anal. Software |
| MTFE | Mercury Thin-film Electrode |
| WDA | Weighted-density Approxn. (within D. Functional Formalism) |
| MACS | Magnetic Cell Sorting System |