Astreaan or Astraean: How To spell?

The word Astreaan is misspelled against Astraean, a noun meaning "A coral of the family Astraeidae; a star coral."

Astraean has vowels 'ae' together mispronounced as 'ea'
Word contains consecutive vowels 'AE' in between alphabets astr & an is misspelled as 'EA'
Wrong Spelling:  astr-ea-an 
Correct Spelling:  astr-ae-an 
Explore spell check of Astraean to spell without errors.

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