Moderate as in motive 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 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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