| Acronym | Meaning |
| SON | Supraoptic Nucleus |
| SXRD | Surface X-ray Diffraction |
| PCAD | Power Conditioning And Distribution (in Spacecraft) |
| ESWTR | Enhanced Surface Water Treatment Rule |
| SEND | Surfaces Enhanced For Neat Desorption |
| NEGF | Nonequilibrium Green Function |
| SMO | Statistical Model Of Overlap |
| ALI | Acute Lung Injury |
| CHESS | Council For Health And Environmental Safety Of Soils |
| ECMCAD | Extracellular Matrix And Cell Adhesion Molecule |