Sideral or Sidereal: How To spell?

The word Sideral is misspelled against Sidereal, meaning "Pertaining to stars or constellations."

--> Sidereal has vowels 'ea' together mispronounced as 'a'
Word contains consecutive vowels 'EA' in between alphabets sider & l is misspelled as 'A'
Wrong Spelling:  sider-a-l 
Correct Spelling:  sider-ea-l 
Find more wrongly spelled words of Sidereal to spell it well.

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