这个词是什么意思？
A birth defect due to malformation of the URETHRA in which the urethral opening is below its normal location. In the male, the malformed urethra generally opens on the ventral surface of the PENIS or on the PERINEUM. In the female, the malformed urethral opening is in the VAGINA.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D007021 · MeSH 2026。
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