| Acronym | Meaning |
| CHO | Complex Harmonic Oscillator (in Mol. Scattering Theory) |
| NSSDC | National Space Science Data Center |
| OVOS | Optimized Virtual Orbital Space Approximation (for Correlated Calcns.) |
| CMC | Ceramic Matrix Composite |
| IRM | Information Resources Management |
| DSC | Differential Scanning Calorimetry |
| VHL | Von-Hippel Lindau |
| MVC | Multi-variable Control |
| LSP | Liquid-stabilized Plasma |
| NSF | National Sanitation Foundation |