r-jb

Etymology
in a direct genitive construction, thus literally ‘the mouth of the heart’, or perhaps less literally ‘the passage of the interior’, with used as it is in.

Noun

 * 1)  the digestive tract, seen as also connected with other organs and capable of influencing them medically

Usage notes
Traditionally translated as, but this view has been shifted in recent years with a more nuanced understanding of Egyptian medical concepts.