The triple burner (三焦) is one part of the six organs (六腑) in Chinese medicine terminology. The character 焦 was originally written as 膲, which means beneath the skin. The upper burner (上焦) corresponds to the section of the body above the diaphragm, the middle burner(中焦) between the diaphragm and belly button, and the lower(下焦) burner the part below. Contrary to the Chinese medical names for the other organs, the concept of the burners does not correspond to bulk organs but are rather the protection of organs.