Preioperculum or Praeoperculum: How To spell?

The word Preioperculum is misspelled against Praeoperculum, a noun meaning "Same as Preoperculum."

Praeoperculum has vowels 'ae' together mispronounced as 'ei'
Word contains consecutive vowels 'AE' in between alphabets pr & operculum is misspelled as 'EI'
Wrong Spelling:  pr-ei-operculum 
Correct Spelling:  pr-ae-operculum 
Check more misspelled words of Praeoperculum to spell it correct.

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