tautochrone

1 definition found

tautochrone - Collaborative International Dictionary of English v.0.48 :

  Tautochrone \Tau"to*chrone\, n. [Gr. ?, for ? ? the same + ?
     time: cf. F. tautochrone.] (Math.)
     A curved line, such that a heavy body, descending along it by
     the action of gravity, will always arrive at the lowest point
     in the same time, wherever in the curve it may begin to fall;
     as, an inverted cycloid with its base horizontal is a
     tautochrone.
     [1913 Webster]