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particle beam

American  

noun

  1. Physics. a concentrated stream of particles, as electrons, neutrons, or protons, generated for studying particle interactions, nuclear structure, crystal structure, etc.

  2. Military. a high-energy stream of such particles for use as a weapon or for antimissile defense.


particle beam British  

noun

  1. a stream of energized particles produced by a particle accelerator

  2. such a stream emitted by a particle beam weapon

"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

Example Sentences

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See Examples For:

Still, MDA recently scrapped plans to test a prototype 500-kilowatt airborne laser by 2025 and to develop a space-based neutral particle beam.

From Science Magazine Jan. 8, 2020

It’s been only seven years since the Tevatron last fired up its particle beam, but it seemed like a much longer time ago.

From New York Times May 28, 2018

Milner and his team believe a charged particle beam such as the free-electron laser could coax a dark photon out of hiding.

From Washington Times Jun. 25, 2016

Milner and his team say they believe a charged particle beam such as the free-electron laser could coax a dark photon out of hiding.

From Washington Post Jun. 24, 2016

Over the following months, he and Ernest sweated to produce an even more energetic particle beam.

From "Big Science" by Michael Hiltzik

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