hairspring

English edit

Etymology edit

hair +‎ spring

Pronunciation edit

Audio (US) (file)

Noun edit

hairspring (plural hairsprings)

A spring, made of a coil of fine wire, that is used to regulate the movement of a balance wheel in a watch.

Derived terms edit

hairspring trigger

Translations edit

Translations

German: Spiralfeder (de) f, Unruhfeder f

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