Toutochrone or Tautochrone: How To spell?
The word Toutochrone is misspelled against Tautochrone, a noun meaning "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."
Word contains consecutive vowels 'AU' in between alphabets t & tochrone is misspelled as 'OU'Wrong Spelling:  t-ou-tochrone  Correct Spelling:  t-au-tochrone 
Check more misspelled words of Tautochrone to spell it correct.