Definition of hairspring in English:


Line breaks: hair|spring
Pronunciation: /ˈhɛːsprɪŋ


  • A slender flat coiled spring regulating the movement of the balance wheel in a watch.
    More example sentences
    • This oscillation is not exactly a parallel to the balance wheel and hairspring of a clockwork watch, but the fact is that both use oscillations to keep track of passing time.
    • The curb pins on the regulator must be adjusted so that the hairspring hits them when it is supposed to.
    • In most cases they used a long extension of the hairspring and pinned it to the base of the balance cock.

More definitions of hairspring

Definition of hairspring in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day kerf
Pronunciation: kəːf
a slit made by cutting with a saw