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electromagnetic pulse

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noun
  1. EMP.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

electromagnetic pulse in Science

electromagnetic pulse

  1. A pulse of intense electromagnetic radiation generated by certain physical events, especially by a nuclear explosion. The pulse includes a continuous spectrum of low frequencies and can interfere with the operation of electrical equipment.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.