这个词是什么意思？
A genus of protozoa parasitic in the digestive tract of vertebrate or invertebrate hosts. Asexual multiplication is accomplished by transverse binary fission. Its organisms are ovoidal in shape and have a ciliated covering over the entire body.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D001448 · MeSH 2026。
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