| Acronym | Meaning |
| MRS | Minimum Required Strength |
| NNI | National Nanotechnology Initiative |
| HPMC | Human Peritoneal Mesothelial Cells |
| SPL | Spent Potliner |
| ECR | Electron Cyclotron Resonance |
| DMAD | Dimethyl Acetylenedicarboxylate |
| MAGW | Momentum-averaged Gaussian-weighted (method In Calcns. Of Electron-momentum Distributions) |
| PRA | Probabilistic Risk Assessment |
| SO | Stieltjes Orbitals (for Mol. Photoionization Continua) |
| SLI | Somatic Liver Index |