turbinate

adj

1. Shaped or spinning like a top (spinning top).
2. In the shape of a coil.
3. Spiral and decreasing sharply in diameter from base to apex.

   “a turbinate shell”

4. Of, or relating to, the turbinate bone.

noun

1. A turbinal or turbinate bone.

verb

1. To revolve or spin like a top; to whirl.