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intermediate vector boson

noun, Physics.
1.
one of the three particles that are believed to transmit the weak force: the positively charged W particle, the negatively charged W particle, and the neutral Z 0 particle.
Also called vector boson.
Origin
1965-1970
1965-70
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for vector-boson

intermediate vector boson

noun
1.
(physics) a hypothetical particle believed to mediate the weak interaction between elementary particles
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
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vector-boson in Science
intermediate vector boson  
Either of two subatomic particles, the W boson or the Z boson, that mediate the weak nuclear force.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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