electromagnetic pulse definition by American Heritage Dictionary
noun Abbr. EMPThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- The pulse of intense electromagnetic radiation generated by a nuclear explosion.
- A pulse of electromagnetic radiation emitted by certain devices such as citizen band radio and cellular phones.
electromagnetic pulse - Science Definition
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.