abomasum; fourth stomach of a ruminant
Technical term in veterinary anatomy and animal science. Also called rennet-bag or maw in English.
The cow's abomasum secretes digestive enzymes.
Reticulum, the second stomach compartment.
Omasum, the third stomach compartment.
Compound of 第四 (fourth) and 胃 (stomach), directly describing its anatomical position in ruminants.