Moderate as in motive 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
4 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.
The mainspring of the story lies in the intricate relationships among the characters, making it a compelling piece of literature.
The mainspring of her dedication to fitness was the desire for a healthier lifestyle, influencing her daily exercise routine.
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