这个词是什么意思？
Partial or complete opacity on or in the lens or capsule of one or both eyes, impairing vision or causing blindness. The many kinds of cataract are classified by their morphology (size, shape, location) or etiology (cause and time of occurrence). (Dorland, 27th ed)
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D002386 · MeSH 2026。
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