| Acronym | Meaning |
| RHT | Restricted Hueckel Method |
| RNR | Ribonucleotide Reductase |
| WRDC | Wright Research And Development Center |
| CICAD | Concise International Chemical Assessment Documents |
| HNBR | Hydrogenated Acrylonitrile-butadiene Rubber |
| FMEA | Failure Mode And Effect Analysis |
| ENSDF | Evaluated Nuclear Structure Data File |
| ARDS | Adult Respiratory Distress Syndrome |
| QWR | Quantum Wire |
| MAST | Marine Science And Technology Programme |