这个词是什么意思？
An order of nematodes of the subclass SECERNENTEA. Characteristics include ventral or caudoventral papillae and an esophagus divided into anterior muscular and posterior glandular parts.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D017174 · MeSH 2026。
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