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Short "hint"

n. - An elementary particle that is identical to another elementary particle in mass (but opposite to it in electric and magnetic properties) of an uncharged elementary particle that has a mass nearly equal to that of the proton

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Usage examples (4)
  • Adjective : The antineutron lobby was outnumbered
  • When an antineutron collides with a beryllium nucleus, it annihilates one neutron, and the mutual annihilation releases around nine times the energy of a fissioning...
  • The major region of administration by for the neutron and antineutron.
  • The missiles penetrated the Arctic ice, and delivered antineutron-beryllium warheads -- or 'cram bombs' --- onto the sites you see here. "
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