这个词是什么意思？
A group (or phylum) of flagellated, anaerobic EUKARYOTES that are endosymbionts of animals. They lack mitochondria but contain small energy-producing hydrogenosomes. The group is comprised of two major classes: HYPERMASTIGIA and TRICHOMONADIDA.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D056900 · MeSH 2026。
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