Definition, Meaning & Synonyms

mainspring

noun
/ˈmeɪnˌsprɪŋ/
Definition
The central spring in a mechanism that provides the primary source of power.
Examples
  • The mainspring of the clock needs to be wound regularly to keep accurate time.
  • In engineering, the mainspring serves as the driving force behind the machinery.
  • Without a properly functioning mainspring, a watch will not operate.
Meaning
In mechanical devices, particularly watches or clocks, the mainspring is essential for storing energy and enabling movement.
Synonyms
  • driving spring
  • power spring
  • energy source