Thamatrope or Thaumatrope: How To spell?

The word Thamatrope is misspelled against Thaumatrope, a noun meaning "An optical instrument or toy for showing the presistence of an impression upon the eyes after the luminous object is withdrawn."

--> Word contains consecutive vowels 'AU' in between alphabets th & matrope is misspelled as 'A' as letter 'U' is phonetically igno
Wrong Spelling:  th-a-matrope 
Correct Spelling:  th-au-matrope 
Find more incorrect spellings of Thaumatrope to spell right way.

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