Source : Webster's Revised Unabridged Dictionary (1913)

Turbinate \Tur"bi*nate\, Turbinated \Tur"bi*na`ted\, a. [L.
   turbinatus, turbo, turben, -inis, a whirl, top.]
   1. Whirling in the manner of a top.

            A spiral and turbinated motion of the whole.
                                                  --Bentley.

   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.

   3. (Anat.) Turbinal.

   4. (Zo["o]l.) Spiral with the whorls decreasing rapidly from
      a large base to a pointed apex; -- said of certain shells.