| Acronym | Meaning |
| RISA | Radioimmunosorbent Assay |
| HSC | Hematopoietic Stem Cells |
| TCDE | Two-center Dirac Equation |
| HPSN | Hot-pressed Silicon Nitride |
| FOPIM | First Order Perturbation Iteration Method |
| EAP | Environmental Action Plan |
| FP-LMTO | Full-potential Linear Combination Of Muffin-tin Orbitals |
| ASBOW | Axial Spin Bond-order Wave |
| SCSA | Small-curvature Semiclassical Adiabatic (approxn. For Mol. Energy Levels) |
| ICSH | Interstitial Cell-stimulating Hormone |