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- DictionaryMain·spring/ˈmānˌspriNG/
noun
- 1. something that plays a principal part in motivating or maintaining a movement, process, or activity: "innovation is the mainspring of the new economy"
- 2. the principal spring in a watch, clock, or other mechanism.
Mainspring definition: the principal spring in a mechanism, as in a watch.. See examples of MAINSPRING used in a sentence.
[usually singular] mainspring (of something) (formal) the most important part of something; the most important influence on something. Small companies are the mainspring of the British economy. Her religious faith was the mainspring of her life. Definitions on the go.
1. The principal spring in a mechanical device, especially a watch or clock, that drives the mechanism by uncoiling. 2. The chief motivating force: the mainspring of a reform movement. American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company.
mainspring meaning, definition, what is mainspring: the most important spring in a watch or ...: Learn more.
Apr 26, 2024 · Definitions of mainspring. noun. the most important spring in a mechanical device (especially a clock or watch); as it uncoils it drives the mechanism. see more. see less. type of: spring. a metal elastic device that returns to its shape or position when pushed or pulled or pressed.
Noun. Filter. noun. The principal spring in a clock, watch, or other mechanism; driving spring, whose steady uncoiling keeps the mechanism running. Webster's New World. Similar definitions. The chief motive or cause. Webster's New World. Similar definitions. (figuratively) The most important reason for something.
Noun [ edit] mainspring (plural mainsprings) (horology) The principal spring of a clockwork mechanism, which drives it by uncoiling. ( figuratively) The most important reason for, or element of, something. My daughter is the mainspring of my life.
