Catacastic or Catacaustic: How To spell?

The word Catacastic is misspelled against Catacaustic, a noun meaning "A caustic curve formed by reflection of light."

Word contains consecutive vowels 'AU' in between alphabets catac & stic is misspelled as 'A' as letter 'U' is phonetically igno
Wrong Spelling: catac-a-stic
Correct Spelling: catac-au-stic
Find more wrongly spelled words of Catacaustic to spell it well.