这个词是什么意思？
In some animals, the jaws together with their horny covering. The beak usually refers to the bill of birds in which the whole varies greatly in form according of the food and habits of the bird. While the beak refers most commonly to birds, the anatomical counterpart is found also in the turtle, squid, and octopus. (From Webster, 3d ed & Storer, et al., General Zoology, 6th ed, p491, 755)
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D001502 · MeSH 2026。
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