| Acronym | Meaning |
| HPTTD | High-performance Thermophilic Two-phase Digestion |
| RDX | Royal Demolition Explosive |
| OASCR | Office Of Advanced Scientific Computing Research |
| CFM | Continued-fraction Method |
| DIRBE | Diffuse IR Background Experiment |
| ISPGAA | In Situ Prompt Gamma-ray Activation Analysis |
| SECH | Screened Exchange Plus Coulomb Hole Method |
| IOS-BS | Infinite Order Sudden-breathing Sphere |
| AHP | Average Hole-potential (method For Electronic-structure Calcns. On Mols.) |
| MARS | Multivariate Adaptive Regression Splines |