Clastral or Claustral: How To spell?

The word Clastral is misspelled against Claustral, an adjective meaning "Cloistral."

Word contains consecutive vowels 'AU' in between alphabets cl & stral is misspelled as 'A' as letter 'U' is phonetically ignore
Wrong Spelling: cl-a-stral
Correct Spelling: cl-au-stral
Browse incorrect spellings of Claustral to spell it good.