noun
Freq #1249088
Meanings
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1
noun
the antiparticle of the neutron, with the same mass and no net electric charge but opposite baryon number
An antineutron can annihilate with a neutron and produce other particles.
Thesaurus
Word family
Forms
antineutrons
Etymology
Formed from anti- + neutron. Although both neutron and antineutron have no net electric charge, their constituent quarks and additive quantum numbers distinguish particle from antiparticle.