master switch in English

noun
1
a switch controlling the supply of electricity or fuel to an entire system.
I turned off the master switch and closed the fuel valves and, as we ground to a halt, followed Lincoln out the crew door.

Use "master switch" in a sentence

Below are sample sentences containing the word "master switch" from the English Dictionary. We can refer to these sentence patterns for sentences in case of finding sample sentences with the word "master switch", or refer to the context using the word "master switch" in the English Dictionary.

1. Flash light :put the master switch on middle gear, then press the right key on board to flash light.

2. ScienceDaily (Sep. 200 — University of Michigan researchers have identified a gene that acts as a master switch to control obesity in mice.

3. 28 As Fred dashed down the hall to the master switch, he ran into the surprised custodian, who was just beginning to wash the floor.