Definition of scram in English:


Syllabification: scram
Pronunciation: /skram

verb (scrams, scramming, scrammed)

  • 2 [with object] Shut down (a nuclear reactor) in an emergency.


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  • The emergency shutdown of a nuclear reactor: the power plant was cited for its high rate of scrams over the past year
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    • Both the number of safety-system activations and scrams are about one tenth of what they were in 1985.


early 20th century: probably from the verb scramble.

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