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hairspring

 - 2 dictionary results

hair⋅spring

[hair-spring]
–noun Horology.
a fine, usually spiral, spring used for oscillating the balance of a timepiece.
Also called balance spring.


Origin:
1820–30; hair + spring
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To hairspring
hair·spring   (hâr'sprĭng')   
n.  A fine coiled spring that regulates the movement of the balance wheel in a watch or clock.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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