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

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

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

Last week Dr. Emilio Segr� of the University of California showed the first bubble-chamber picture of an anti-neutron�or rather, a place where an antineutron could be proved to have been.

From Time Magazine Archive

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