From Wiktionary, the free dictionary
Buch + Magen
Buchmagen m (strong, genitive Buchmagens, plural Buchmägen)
- omasum, the third compartment of the stomach of a ruminant
- Synonyms: Faltenmagen, Blättermagen, Psalter, Buch, Kalender, Löser
Declension of Buchmagen [masculine, strong]