A series of campaigns (1800–15) of French armies under Napoleon against Austria, Russia, Great Britain, Portugal, Prussia, and other European powers. They ended with Napoleon's defeat at the Battle of Waterloo.
Definition of Napoleonic Wars in US English:
Napoleonic Wars
proper nounnəˌpōlēänik ˈwôrz
A series of campaigns (1800–15) of French armies under Napoleon against Austria, Russia, Great Britain, Portugal, Prussia, and other European powers. They ended with Napoleon's defeat at the Battle of Waterloo.