Catacustic or Catacaustic: How To spell?

The word Catacustic 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 'U' as letter 'A' is phonetically igno
Wrong Spelling:  catac-u-stic 
Correct Spelling:  catac-au-stic 
Check more misspelled words of Catacaustic to spell it correct.

You might be interested to know

Cusey or Causey?

Clustral or Claustral?

Defulted or Defaulted?