Definition of "tourbillon" [tourbillon]

• A rotating frame, containing the escapement of a clock or watch, that attempts to compensate for the effects of gravity. (noun)

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• "The mechanical design of the Cabestan, including its tourbillon, is totally transversal."
• "I have known before what it is to be in what our neighbours have called a tourbillon, but never on such a scale as this."
• "Forestier-Kasapi said the tourbillon was a mechanism that allowed the balance spring to rotate completely in a vertical plane at a speed typically of one complete revolution per minute."