1) Cooking apple 
Gravenstein (Danish: Gråsten-Æble) is a variety of apple native to Gråsten in South Jutland, Denmark. The variety was discovered in 1669 as a chance seedling. ==Description and growing conditions== The Gravenstein apple has a tart flavor. It is picked in July and August and is heavily used as a cooking apple, especially for apple sauce and appl...
• (n.) A kind of fall apple, marked with streaks of deep red and orange, and of excellent flavor and quality.
Gra'ven·stein' noun [ So called because it came from Gravenstein, a place in Schleswig. Downing.] A kind of fall apple, marked with streaks of deep red and orange, and of excellent flavor and quality. 
Gravenstein is a variety of apple.