noun tau·to·chrone \ˈtȯtəˌkrōn\

Definition of tautochrone



  1. :  a curve which is a cycloid under a horizontal base and down which the time of descent under gravity from every point to the lowest point is the same

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Origin and Etymology of tautochrone

French, from taut- + Greek chronos time

First Known Use: circa 1774

Seen and Heard

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capable of being understood in two ways

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