main·spring


main·spring
/ˈmeınˌsprıŋ/ noun, pl -springs [count]
1 : the most important spring in a watch or clock
2 : the most important or powerful cause or part of something

Agriculture is the mainspring of their economy.


Useful english dictionary. 2012.

Look at other dictionaries:

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  • main-spring — n. Prime mover …   New dictionary of synonyms

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