shut-off

shutoff

[shuht-awf, -of]
noun
1.
an object or device that shuts (something) off: the automatic shutoff on a heater.
2.
an act or instance of shutting off something, as an opening, a flow, or a service: a shutoff of electric power due to unpaid bills.
Also, shut-off.


Origin:
1865–70; noun use of verb phrase shut off

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
shut-off
 
n
1.  a device that shuts something off, esp a machine control
2.  a stoppage or cessation
 
vb
3.  to stem the flow of
4.  to block off the passage through
5.  to isolate or separate

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