Agriculture is the mainspring of their economy.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mainspring.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
1591
: the most important spring in a watch or clock
: the most important or powerful cause or part of something
See words that rhyme with mainspring Britannica.com: Encyclopedia article about mainspring
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