Whirling like a top.

陀螺状旋转的。

Having the shape of a top, as some shells.

【动】【植】形如陀螺的(如某些贝类)。

Shaped like a spiral; rolled in a coil.

【解】螺旋形的；旋卷的。

A turbinate bone.

鼻甲骨。