Prussian /ˈpɹʌ.ʃən/noun 4adjective 1forms 1 noun4 •A native or inhabitant of the geographical region of Prussia. •(historical) A citizen of the German state of Prussia. •A member of or a person descended from the German ethnic group which settled in Prussia.The Junkers were the stereotypical Prussians. •A member of or a person descended from the Baltic ethnic group which inhabited Prussia. adjective1 •Of, from, or pertaining to Prussia. formsPrussians