| Acronym | Meaning |
| TNOA | Target Natural Orbital Approximation |
| BST | Bovine Somatotropin |
| NBS | National Bureau Of Standards |
| BOA | Benzyl Octyl Adipate |
| CEM | Corrected Effective Medium (for Atomic Interactions) |
| CEAM | Center For Exposure Assessment Modeling |
| CML | Chronic Myelogenous Leukemia |
| GCIB | Gas Cluster Ion Beam |
| DAP | Distributed Array Processor |
| VSTEP | Vertical-to-surface Transmission Electrophotonic Device |