A small knob or head-shaped part, such as a protuberance of a bone or the tip of an insect's antenna.

一小块球状突出物或头状部分，如一根骨头的突起或一个昆虫的触角的顶端。

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A small knob or head-shaped part, such as a protuberance of a bone or the tip of an insect's antenna.

一小块球状突出物或头状部分，如一根骨头的突起或一个昆虫的触角的顶端。

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