Moderate as in fountain The primary source of power, often located at the bottom, that drives a mechanism or device. Clear All
5 Example Sentences Showcasing the Meaning of 'Mainspring'
Students were amazed to discover the mainspring of the antique clock during their history museum visit.
As the hiker reached the summit, he felt a burst of energy, akin to a mainspring propelling him forward.
With a gentle pull of the lever, the magician revealed the hidden compartment powered by a concealed 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.
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