pilsner (n.)

also Pilsner, Pilsener, type of pale, hoppy lager beer, 1877, after Pilsen, German town in Bohemia (Czech Plzen) where it first was brewed. Now designating a type, not an origin; pilsner from Plzen is Pilsner Urquell, from German Urquell "primary source." The place name is from Old Czech plz "damp, moist." Related: Pils.

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Definitions of pilsner from WordNet

Pilsner (n.)
a pale lager with strong flavor of hops; first brewed in the Bohemian town of Pilsen;
Synonyms: Pilsener