Deltoc or Deltaic: How To spell?

The word Deltoc is misspelled against Deltaic, an adjective meaning "Relating to, or like, a delta."

Word contains consecutive vowels 'AI' in between alphabets delt & c is misspelled as 'O'
Wrong Spelling:  delt-o-c 
Correct Spelling:  delt-ai-c 
Find more incorrect spellings of Deltaic to spell right way.

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