这个词是什么意思？
An infraorder of New World monkeys, comprised of the families AOTIDAE; ATELIDAE; CEBIDAE; and PITHECIIDAE. They are found exclusively in the Americas.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D051078 · MeSH 2026。
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