Navropometer or Nauropometer: How To spell?

The word Navropometer is misspelled against Nauropometer, a noun meaning "An instrument for measuring the amount which a ship heels at sea."

Word contains consecutive vowels 'AU' in between alphabets n & ropometer is misspelled as 'AV'
Wrong Spelling:  n-av-ropometer 
Correct Spelling:  n-au-ropometer 
Find more incorrect spellings of Nauropometer to spell right way.

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