Catacawstic or Catacaustic: How To spell?
The word Catacawstic 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 'AW'Wrong Spelling:  catac-aw-stic  Correct Spelling:  catac-au-stic 
Find more wrongly spelled words of Catacaustic to spell it well.