The word Lactaen is misspelled against Lactean, an adjective meaning "Lacteal; conveying chyle."
-->
Lactean has vowels 'ea' together mispronounced as 'ae'
Word contains consecutive vowels 'EA' in between alphabets lact & n is misspelled as 'AE'
Wrong Spelling:  lact-ae-n 
Correct Spelling:  lact-ea-n 
Explore spell check of Lactean to spell without errors.