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antineutrino

[an-tee-noo-tree-noh, -nyoo-, an-tahy-]
noun, plural an·ti·neu·tri·nos. Physics.
  1. the antiparticle of a neutrino, distinguished from the neutrino by having clockwise rather than counterclockwise spin when observing in the direction of motion.
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Origin of antineutrino

First recorded in 1930–35; anti- + neutrino
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for antineutrino

antineutrino

noun plural -nos
  1. the antiparticle of a neutrino; a particle having oppositely directed spin to a neutrino, that is, spin in the direction of its momentum
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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

antineutrino in Science

antineutrino

[ăn′tē-nōō-trēnō, ăn′tī-]
  1. The antiparticle that corresponds to the neutrino.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.