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Master switch


a controlling switch over the actions within an entire electrical or fuel system, esp. one that can break the main supply in emergency situations


Read Also:

  • Master warrant officer

    noun 1. a noncommissioned officer in the Canadian forces junior to a chief warrant officer

  • Masterwork

    [mas-ter-wurk, mah-ster-] /ˈmæs tərˌwɜrk, ˈmɑ stər-/ noun 1. .

  • Master-work

    [mas-ter-wurk, mah-ster-] /ˈmæs tərˌwɜrk, ˈmɑ stər-/ noun 1. . n. c.1600, from master (n.) + work (n.). Probably based on a Dutch or German model.

  • Master-workman

    noun 1. a worker in charge. 2. a person who is master of a craft.

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