*turbinate*

{ } a. [ L. turbinatus, fr. turbo, turben, turbinis, a whirl, top. ] 1. Whirling in the manner of a top. [ 1913 Webster ]

A spiral and turbinated motion of the whole. Bentley. [ 1913 Webster ]

2. (Bot.) Shaped like a top, or inverted cone; narrow at the base, and broad at the apex; as, a turbinated ovary, pericarp, or root. [ 1913 Webster ]

3. (Anat.) Turbinal. [ 1913 Webster ]

4. (Zool.) Spiral with the whorls decreasing rapidly from a large base to a pointed apex; -- said of certain shells. [ 1913 Webster ]