Definition of prussians:
(adj) :
Of, from, or pertaining to Prussia.
(n) :
A native or inhabitant of the geographical region of Prussia.
(n) :
(historical) A citizen of the German state of Prussia.
(n) :
A member of or a person descended from the German ethnic group which settled in Prussia.
(n) :
A member of or a person descended from the Baltic ethnic group which inhabited Prussia.
(n) :
The Prussian language; see Old Prussian and New Prussian.