| Acronym | Meaning |
| FCA | Fuzzy Cluster Analysis |
| SDCPA | Site-dependent Coherent Potential Approxn. |
| TSCW | Torsional Spin Current Wave (type Of Hartree-Fock Wave Function) |
| CPI | Chemical Patents Index |
| CLP | Contract Laboratory Program |
| SCSOPW | Self-consistent Symmetrized Orthogonalized-plane-wave |
| BEHP | Bis(2-ethylhexyl) Phthalate |
| STAD | Simple Town Air Dispersion Model (of Air Pollution) |
| FNA | Fine-needle Aspiration |
| GEM | Gas Electron Multiplier |