Subperiostayl or Subperiosteal: How To spell?

The word Subperiostayl is misspelled against Subperiosteal, an adjective meaning "Situated under the periosteum."

Subperiosteal has vowels 'ea' together mispronounced as 'ay'
Word contains consecutive vowels 'EA' in between alphabets subperiost & l is misspelled as 'AY'
Wrong Spelling:  subperiost-ay-l 
Correct Spelling:  subperiost-ea-l 
Check more misspelled words of Subperiosteal to spell it correct.

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