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Meaning of antineutron

an•ti•neu•tron

Pronunciation: (an"tē-n'tron, -ny'-, an"tī-), [key]
— n. Physics.
  1. an elementary particle having no charge and having a mass and spin equal to that of the neutron but with magnetic moment opposite to that of the neutron; the antiparticle of the neutron.
—adj.
  1. opposing the building, stockpiling, or use of neutron bombs: The antineutron lobby was outnumbered.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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