antiproton

[an-tee-proh-ton, an-tahy-]

noun

Physics.

1. an elementary particle having negative charge equal in magnitude to that of the electron and having the same mass and spin as a proton; the antiparticle of the proton.

antiproton

/ ˈæntɪˌprəʊtɒn /

noun

1. the antiparticle of the proton; a particle having the same mass as the proton but an equal and opposite charge

antiproton

1. The antiparticle that corresponds to the proton.

Word History and Origins

Origin of antiproton¹

First recorded in 1935–40; anti- + proton

Example Sentences

To reach higher energies, physicists usually build bigger, more powerful hadron colliders that smash protons into either protons or antiprotons.

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For example, antiprotons have a negative charge while protons have a positive charge.

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The antiprotons and positrons attract, forming neutrally charged atoms of antihydrogen, the antimatter version of hydrogen.

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First, the team used an electric field to catch antiprotons and antielectrons generated in particle collisions.

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These antiprotons are produced by colliding particles together in Cern's accelerators.

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