antineutron

American  

[an-tee-noo-tron, -nyoo-, an-tahy-] / ˌæn tiˈnu trɒn, -ˈnyu-, ˌæn taɪ- /

noun

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.

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adjective

1. Also anti-neutron. opposing the building, stockpiling, or use of neutron bombs.

   The antineutron lobby was outnumbered.

antineutron British  

/ ˌæntɪˈnjuːtrɒn /

noun

1. the antiparticle of a neutron; a particle having the same mass as the neutron but a magnetic moment of opposite sign

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antineutron Scientific  

/ ăn′tē-no̅o̅′trŏn′,ăn′tī- /

1. The antiparticle that corresponds to the neutron.

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Etymology

Origin of antineutron

First recorded in 1940–45; anti- + neutron

Example Sentences

What lifetime do you expect for an antineutron isolated from normal matter?

From Textbooks • Aug. 12, 2015

The neutron shot out of the picture undetected, but the antineutron hit a carbon atom in the propane and committed double suicide with one of its protons or neutrons.

From Time Magazine Archive

The antiproton, he says, hit an ordinary, positively charged proton and reacted with it in such a way that the collision produced one ordinary neutron and one antineutron.

From Time Magazine Archive

If an antineutron hits a neutron, both turn into energy.

From Time Magazine Archive

Since its basic "anti-ness" was not changed by the loss of its charge, it became an antineutron with a reversed magnetic field.

From Time Magazine Archive