D defs.my
Entry 1 sense Webster, 1913

antineutron

· IPA
01 n. The antiparticle of a neutron. It has the same mass as a neutron, but a spin and magnetic moment opposite that of the neutron.
  1. 1.
    The antiparticle of a neutron. It has the same mass as a neutron, but a spin and magnetic moment opposite that of the neutron.