这个词是什么意思？
A genus of anaerobic coccoid METHANOCOCCACEAE whose organisms are motile by means of polar tufts of flagella. These methanogens are found in salt marshes, marine and estuarine sediments, and the intestinal tract of animals.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D017017 · MeSH 2026。
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