![jena jena](https://www.tekportal.net/wp-content/uploads/2019/02/jena-9645.jpg)
noun
- a city in central Germany: Napoleon decisively defeated the Prussians here in 1806.
noun
- a city in E central Germany, in Thuringia: university (1558), at which Hegel and Schiller taught; site of the battle (1806) in which Napoleon Bonaparte defeated the Prussians; optical and precision instrument industry. Pop: 102 634 (2003 est)