这个词是什么意思？
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)
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D000018 · MeSH 2026。
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