这个词是什么意思？
Highly reactive compounds produced when oxygen is reduced by a single electron. In biological systems, they may be generated during the normal catalytic function of a number of enzymes and during the oxidation of hemoglobin to METHEMOGLOBIN. In living organisms, SUPEROXIDE DISMUTASE protects the cell from the deleterious effects of superoxides.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D013481 · MeSH 2026。
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