Advanced as in cornerstone 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
3 Example Sentences Showcasing the Meaning of 'Mainspring'
The mainspring of a successful novel lies in its captivating plot and well-developed characters.
The watchmaker carefully examined the mainspring to ensure the proper functioning of the antique clock.
During the history lecture, the professor discussed the significance of the mainspring in revolutionizing timekeeping devices.
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