Definition of: Prussian

(prush′ən) adjective
1. Of or pertaining to Prussia, its inhabitants, or their language.
2. Characteristic of the Junkers of Prussia; militaristic; overbearing.
—noun
1. A native or naturalized inhabitant of Prussia.
2. The old language of Prussia, belonging to the Baltic branch of the Balto-Slavic subfamily of Indo-European languages: extinct since the 17th century, and often called Borussian: also Old Prussian.