Turbinated

Webster's Dictionary of the English Language

·adj Turbinal.

II. Turbinated ·adj Whirling in the manner of a top.

III. Turbinated ·adj Spiral with the whorls decreasing rapidly from a large base to a pointed apex;

— said of certain shells.

IV. Turbinated ·adj Shaped like a top, or inverted cone; narrow at the base, and broad at the apex; as, a turbinated ovary, pericarp, or root.