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A fine spiral spring that regulates the movement of the balance wheel in a timepiece
Answer for the clue "A fine spiral spring that regulates the movement of the balance wheel in a timepiece ", 10 letters:
hairspring
Alternative clues for the word hairspring
Word definitions for hairspring in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Hairspring \Hair"spring`\ (-spr[i^]ng`), n. (Horology) The slender recoil spring which regulates the motion of the balance in a timepiece.
Wiktionary
Word definitions in Wiktionary
n. A spring, made of a coil of fine wire, that is used to regulate the movement of a balance wheel in a watch.
WordNet
Word definitions in WordNet
n. a fine spiral spring that regulates the movement of the balance wheel in a timepiece
Usage examples of hairspring.
Leaning forward in his chair he reproduced the two white cats from behind him, put the kittens back in their box, caught the blackbird and caged it, and was carefully winding up the hairspring in the white butterfly, when again he fancied that somebody was knocking.
You see that slender hairspring of Rosium uncurl and rise, trembling and waving about like a tentacle?
Englishman examined the dial and then turned the watch over to look at the tiny gilt hairspring, beating like a heart.