• The principal or most important spring in a piece of mechanism,especially the moving spring of a watch or clock or the spring in agunlock which impels the hammer. Hence: The chief or most powerfulmotive; the efficient cause of action.


    Mainspring meaning & definition 1 of Mainspring.


  • the most important reason for something; the thing that makes something else happen:

    Mainspring meaning & definition 2 of Mainspring.


  • Something that plays a principal part in motivating or maintaining a movement, process, or activity.

    Mainspring meaning & definition 3 of Mainspring.


  • The main agent of motivation.

    Mainspring meaning & definition 4 of Mainspring.

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