Hurspring or Hairspring: How To spell?

The word Hurspring is misspelled against Hairspring, a noun meaning "The slender recoil spring which regulates the motion of the balance in a timepiece."

Word contains consecutive vowels 'AI' in between alphabets h & rspring is misspelled as 'U'
Wrong Spelling:  h-u-rspring 
Correct Spelling:  h-ai-rspring 
Check more misspelled words of Hairspring to spell it correct.

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