Proteun or Protean: How To spell?
The word Proteun is misspelled against Protean, an adjective meaning "Exceedingly variable; readily assuming different shapes or forms; as, an amoeba is a protean animalcule."
Protean has vowels 'ea' together mispronounced as 'eu'Word contains consecutive vowels 'EA' in between alphabets prot & n is misspelled as 'EU'
Wrong Spelling:  prot-eu-n  Correct Spelling:  prot-ea-n 
Check more misspelled words of Protean to spell it correct.