这个词是什么意思？
Invertebrate organisms that live on or in another organism (the host), and benefit at the expense of the other. Traditionally excluded from definition of parasites are pathogenic BACTERIA; FUNGI; VIRUSES; and PLANTS; though they may live parasitically.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D010271 · MeSH 2026。
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