turbinate

Shaped like a top.

Spinning like a top.

Spiral and decreasing sharply in diameter from base to apex. Used especially of shells.

Of, relating to, or designating a small curved bone that extends horizontally along the lateral wall of the nasal passage in mammals and birds.

A turbinate bone.

Shaped like a whipping-top.

In anatomy, whorled or scroll-like in shape; turbinal; spongy in texture, or full of cavities: applied to certain bones and parts of bones in the nasal fossæ.

Whirling in the manner of a top.

To fashion like a top.

To revolve like a top; spin; whirl.