the most important spring in a mechanical device (especially a clock or watch); as it uncoils it drives the mechanism
The principal spring of a clockwork mechanism, that drives it by uncoiling.
The most important reason for something.
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
A mainspring is a spiral torsion spring of metal ribbon that is the power source in mechanical watches and some clocks. Winding the timepiece, by turning a knob or key, stores energy in the mainspring by twisting the spiral tighter. The force of the mainspring then turns the clock's wheels as it unwinds, until the next winding is needed. The adjectives wind-up and spring-wound refer to mechanisms powered by mainsprings, which also include kitchen timers, music boxes, wind-up toys and clockwork radios.
The numerical value of mainspring in Chaldean Numerology is: 6
The numerical value of mainspring in Pythagorean Numerology is: 3
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