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mainspring

/'meɪn,sprɪŋ/

Synonyms of mainspring Antonyms of mainspring Examples of mainspring Usage of mainspring Parts of mainspring Definition that contains mainspring Words sounding like mainspring Explanation of mainspring

noun
the most important spring in a mechanical device (especially a clock or watch); as it uncoils it drives the mechanism
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type of:
spring

part of:
clockwork

Definition that contains mainspring

fusee a spirally grooved spindle in a clock that counteracts the diminishing power of the uncoiling mainspring
fusee drive a spirally grooved spindle in a clock that counteracts the diminishing power of the uncoiling mainspring