What does pumpernickel mean in cooking?

pumpernickel means: Black bread with rye flour. (in Cooking Dictionary)

What else does pumpernickel mean?

Light brown in color, this rye flour is medium to coarsely ground. You can call it “medium-rye”. It is a mixture of wheat flour and rye that produces a unique bread. To add flavor and color, molasses is often used. (in Cooking Dictionary)

Dark, sweet bread from whole, coarsely ground Rye. (in Merlin Dictionary)