Anatomy
abomasum Audio
ab·o·ma·sum [ ab-uh-mey-suhm ]
Subclass of:
Stomach, Ruminant
Definitions related to abomasum:
  • The fourth stomach of ruminating animals. It is also called the true stomach. It is an elongated pear-shaped sac lying on the floor of the abdomen, on the right-hand side, and roughly between the seventh and twelfth ribs. It leads to the beginning of the small intestine. (From Black's Veterinary Dictionary, 17th ed)
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • The glandular stomach of ruminants.
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
  • The glandular stomach of the ruminant.
    NCI
    U.S. National Cancer Institute, 2021
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