A sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin.

动物身体硬而尖锐的部分或附属肢体；如豪猪的刚毛或鱼鳍的骨脉。

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A sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin.

动物身体硬而尖锐的部分或附属肢体；如豪猪的刚毛或鱼鳍的骨脉。

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