| Acronym | Meaning |
| HPLS | Hierarchical Partial Least Squares |
| CSRS | Cooperative State Research Service (US Dept. Of Agriculture) |
| CERES | Cloud And The Earth's Radiant Energy System |
| FIM-APS | Field Ion Microscopy-atom Probe Spectroscopy |
| CID | Charge Injection Device |
| DHOT | Double-heterojunction Optical Thyristor |
| SPEAR | Stanford Positron Electron Accelerating Ring |
| ENSDF | Evaluated Nuclear Structure Data File |
| EAA | Essential Amino Acids |
| DIGGER | Discrete Isolation From Gradient-governed Elimination Of Resonances |