Proteud or Proteid: How To spell?

The word Proteud is misspelled against Proteid, a noun meaning "One of a class of amorphous nitrogenous principles, containing, as a rule, a small amount of sulphur; an albuminoid, as blood fibrin, casein of milk, etc. Proteids are present in nearly all animal fluids and make up the greater part of animal tissues and organs. They are also important constituents of vegetable tissues. See 2d Note under Food."

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