Penetril or Penetrail: How To spell?

The word Penetril is misspelled against Penetrail, a noun meaning "Penetralia."

Word contains consecutive vowels 'AI' in between alphabets penetr & l is misspelled as 'I'
Wrong Spelling:  penetr-i-l 
Correct Spelling:  penetr-ai-l 
Find more wrongly spelled words of Penetrail to spell it well.

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