| Acronym | Meaning |
| THEED | Transmission High-energy Electron Diffraction |
| OVMO | Occupied Valence-type Mol. Orbital |
| SMOW | Standard Mean Ocean Water |
| SQRD | Square Root Darwin Term (correction To T And V Operator) |
| LCAT | Lecithin-cholesterol Acyltransferase |
| MEXH | Multiple-energy X-ray Holography |
| DQ-RSPT | Double And Quadruple Excitation Diagrams In Rayleigh-Schroedinger Perturbation Theory |
| DRIFT | Diffuse Reflectance IR Fourier Transform |
| DIN | Deutsche Industrie-Norm (German Industrial Standard) |
| SLPI | Secretory Leukocyte Protease Inhibitor |