Hydrocualus or Hydrocaulus: How To spell?

The word Hydrocualus is misspelled against Hydrocaulus, a noun meaning "The hollow stem of a hydroid, either simple or branched. See Illust. of Gymnoblastea and Hydroidea."

Word contains consecutive vowels 'AU' in between alphabets hydroc & lus is misspelled as 'UA'
Wrong Spelling:  hydroc-ua-lus 
Correct Spelling:  hydroc-au-lus 
Check more misspelled words of Hydrocaulus to spell it correct.

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