Compound of boek (“book; omasum”) + maag (“stomach”). Named after the laminae (leaflets) in the omasum, compare German Buch, English bible, Swedish bladmage, German Kalender and English psalterium.
- IPA(key): /ˈbuk.maːx/
- Hyphenation: boek‧maag
boekmaag f (plural boekmagen)
- omasum
- Synonym: boekpens