| Acronym | Meaning |
| CAWG | Clean Air Working Group |
| DNC | Delayed Neutron Counting |
| RNAI | RNA Interference |
| IRIS | Integrated Risk Information System |
| MAD | Multiwavelength Anomalous Diffraction |
| GIPM/D | Ground State Inversion Potential Method Including Diffraction |
| CBD | Citrate-bicarbonate-dithionite (sample Treatment In Soil Analysis) |
| SEE | Space Environment And Effects |
| ADS | Accelerator Driven System |
| CCPA | Cluster Coherent Potential Approximation (for Electronic Structure Calcns.) |