Moderate as in keynote A component, typically found in devices such as clocks or watches, that serves as the primary source of power, as in a fountain. Clear All
5 Example Sentences Showcasing the Meaning of 'Mainspring'
The young student learned about the mainspring while exploring the inner workings of a vintage pocket watch.
The watch enthusiast admired the precision engineering of the mainspring in high-end luxury watches.
Emily discovered that determination was the mainspring of her achievements.
Team spirit serves as the mainspring for a successful sports franchise.
Friendship can be considered the mainspring of a happy and fulfilling life.
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