Osseun or Ossein: How To spell?

The word Osseun is misspelled against Ossein, a noun meaning "The organic basis of bone tissue; the residue after removal of the mineral matters from bone by dilute acid; in embryonic tissue, the substance in which the mineral salts are deposited to form bone; -- called also ostein. Chemically it is the same as collagen."

Word contains consecutive vowels 'EI' in between alphabets oss & n is misspelled as 'EU'
Wrong Spelling:  oss-eu-n 
Correct Spelling:  oss-ei-n 
Check more misspelled words of Ossein to spell it correct.