2. A bone shaped like a top. The turbinate is a bone in the nose which is an extension of the ethmoid bone, is situated along the side wall of the nose, and is covered by mucous membrane.
The word turbinate is related to a turbine; derived from Latin turbo, "a whorl", "an eddy", or "a spiral shell". The turbinate in the nose was so named because it is a curled shelf of bone protruding from the lateral (side) wall of the nasal cavity.
Although tornado is said by some to come from Latin turbo, it apparently does not. Etymologists say tornado is more closely related to Latin tonare, "to thunder".