这个词是什么意思？
Highly reactive chemicals that introduce alkyl radicals into biologically active molecules and thereby prevent their proper functioning. Many are used as antineoplastic agents, but most are very toxic, with carcinogenic, mutagenic, teratogenic, and immunosuppressant actions. They have also been used as components in poison gases.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D000477 · MeSH 2026。
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