| Acronym | Meaning |
| SNO | Spin Natural Orbital |
| SDSD | Satellite Data Services Division |
| ICSI | Intracytoplasmic Sperm Injection |
| PRDDO | Partial Retention Of Diatomic Differential Overlap |
| NRA | Nuclear Reaction Analysis (Rensselear Polytech) |
| GAEP | Generalized Atomic Effective Potential |
| NOET | NASA Operational Environment Team |
| GSAC | Generalized Symmetry Adapted Cluster (theory) |
| WAXS | Wide-angle X-ray Scattering |
| RCM | Rotated-coordinate Method |