Definition of shutoff
(Entry 1 of 2)
1
: something (such as a valve) that shuts off
2
: stoppage, interruption
shut off
verb
shut off; shutting off; shuts off
Definition of shut off (Entry 2 of 2)
1
: to close off : separate
—usually used with from shut off from the rest of the world
2a
: to cut off (a flow or passage) : stop
shuts off the oxygen supply
b
: to stop the operation of (something, such as a machine)
shut the motor off
: to cease operating : stop
shuts off automatically
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Merriam-Webster unabridged
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Time Traveler for shutoff
The first known use of shutoff was in 1818
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