Hyoidaun or Hyoidean: How To spell?
The word Hyoidaun is misspelled against Hyoidean, an adjective meaning "Same as Hyoid, a."
Hyoidean has vowels 'ea' together mispronounced as 'au'Word contains consecutive vowels 'EA' in between alphabets hyoid & n is misspelled as 'AU'
Wrong Spelling:  hyoid-au-n  Correct Spelling:  hyoid-ea-n 
Check more misspelled words of Hyoidean to spell it correct.