| Definition | In the SF sense, using the energy within the atomic nucleus. |
| OED requirements | antedating 1914 |
| Earliest cite | H.G. Wells. 'The World Set Free' |
| Comment | There is an 1882 cite for "atomic physics", but nothing prior to 1914 for the science fictional senses such as "atomic aeroplane". |
| Last modified | 8 March, 2005 |