Moderate as in root The primary source of power, often located at the bottom, that drives a mechanism or device. Clear All
6 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.
In the novel, the protagonist's desire for justice served as the mainspring driving the plot forward.
The mainspring behind the environmental movement is the concern for the planet's well-being.
A strong sense of community can be the mainspring for positive social change within a neighborhood.
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