| Acronym | Meaning |
| NFPA | National Fire Protection Association |
| CRC | Coupled-reaction-channels (quantum Calcn. Method) |
| ORU | In Orbit Replaceable Unit (spacecraft) |
| ICP | Interactive Correlation Partitioning |
| RWKB | Relativistic Wentzel-Kramers-Brillouin |
| MIKES | Mass-analyzed Ion-kinetic Energy Spectrometry |
| SDS | Sodium Dodecyl Sulfate |
| IMF | Initial Mass Function |
| BORT | Bond Orbital Resonance Theory |
| NIDDM | Non-insulin-dependent Diabetes Mellitus |