Expert as in cornerstone The primary and essential element, akin to a keynote or keystone. Clear All
4 Example Sentences Showcasing the Meaning of 'Mainspring'
The discovery of DNA's structure is the mainspring of modern genetics.
The mainspring of democracy is an informed and engaged citizenry.
The discovery of the lost manuscript acted as the mainspring for the literary community, sparking renewed interest in the author's work.
The entrepreneur believed that innovation was the mainspring driving the success of his startup in the competitive market.
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