hairspring

[ hair-spring ]

nounHorology.
  1. a fine, usually spiral, spring used for oscillating the balance of a timepiece.

Origin of hairspring

1
First recorded in 1820–30; hair + spring

Words Nearby hairspring

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How to use hairspring in a sentence

British Dictionary definitions for hairspring

hairspring

/ (ˈhɛəˌsprɪŋ) /


noun
  1. horology a very fine spiral spring in some timepieces, which, in combination with the balance wheel, controls the timekeeping

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