Definitions for "Amduat"
The "Book of What is in the Underworld". It describes the journey undertaken by the solar barque through the 12 hours of the night to reappear the next morning.
The Amduat, also called "Book of What is in the Underworld", is a corpus of funerary texts and vignettes. It describes the journey of the sun god through the 12 hours of the night, from its setting to its rising in the morning.
The book (papyruses) ‘That is in the Netherworld'.