It is the plural form or definite form of the adjective "Norwegian" (in Norwegian).
E.g.
A Norwegian apple = et norsk eple
Norwegian apples = norske epler
The Norwegian apple = det norske eplet
Det Norske Veritas
Norske Jenter was created in 1980.
Norske Talenter was created in 2007.
Norske Skog's population is 2,010.
Norske Skog was created in 1962.
Norske Folk was created in 1917.
Norske Folk ended in 1991.
Norske Hits was created in 1998-11.
HOFF Norske Potetindustrier was created in 1879.
Det Norske Luftfartrederi ended in 1920.
Den norske Bank was created in 1990.
Den norske Creditbank ended in 1990.