Mainspring Definition

Other Mainspring Definition

[n] the most important spring in a mechanical device (especially a clock or watch); as it uncoils it drives the mechanism


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clockwork, spring

Misc. Definitions

\Main"spring`\, n. The principal or most important spring in a piece of mechanism, especially the moving spring of a watch or clock or the spring in a gunlock which impels the hammer. Hence: The chief or most powerful motive; the efficient cause of action.

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