tube pan means: Tin for baking cakes with a ring-shaped design This tin is used most often to make angel food cakes and sponge cakes. (in Cooking Dictionary)

What else does tube pan mean?

This is a deep, circular cake pan that has a hollow tube at the centre. It’s used to bake angel food or sponge cakes. (in Cooking Dictionary)

This is a round pan that has a hollow projection at the center. It’s used to bake or mold foods into the form of a ring. (in Merlin Dictionary)