| Acronym | Meaning |
| TPPI | Time Proportional Phase Increment |
| GCG | Genetics Computer Group |
| FCCP | Trifluoromethoxy Carbonylcyanide Phenylhydrazone |
| BLR | Broad Line Region |
| LDF | Local Density Functional |
| AESOP | Ab-initio Effective Spin-orbit Operator |
| UW-PG | Uniformly Weighted Planar Grid (method In Calcns. Of Electron-momentum Distributions) |
| WAXD | Wide-angle X-ray Diffraction |
| WRAP | Waste Reduction And Prevention Act (Manitoba |
| LCP | Local Complex Potential (in Electron-atom Scattering) |