Lactoproteyn or Lactoprotein: How To spell?
The word Lactoproteyn is misspelled against Lactoprotein, a noun meaning "A peculiar albuminous body considered a normal constituent of milk."
Word contains consecutive vowels 'EI' in between alphabets lactoprot & n is misspelled as 'EY'Wrong Spelling:  lactoprot-ey-n  Correct Spelling:  lactoprot-ei-n 
Find more incorrect spellings of Lactoprotein to spell right way.