Definition of giessen:
(N) :
(Gießen in German) one of the three of Hesse, Germany, located in the middle of the state.
(N) :
(Landkreis Gießen in German) a Kreis (district) in the middle of Hessen, Germany.
(N) :
Giessen, spelled Gießen in German, is a town in the German state (Bundesland) of Hesse, capital of both the district of Giessen and the administrative region of Giessen.
(N) :
a town in Hesse, Germany.