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neutron bomb

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noun
  1. a nuclear bomb designed to release radiation consisting mainly of neutrons, thus causing extensive loss of life but relatively little damage to buildings and property and only brief radioactive contamination.
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Origin of neutron bomb

First recorded in 1955–60
Also called neutron radiation weapon, N-bomb.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for neutron bomb

neutron bomb

noun
  1. a type of nuclear weapon designed to provide a high yield of neutrons but to cause little blast or long-lived radioactive contamination. The neutrons destroy all life in the target area, which theoretically can be entered relatively soon after the attackTechnical name: enhanced radiation weapon
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012