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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
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

antiproton

/ ăn′tē-prōtŏn′,ăn′tī- /

  1. The antiparticle that corresponds to the proton.
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Word History and Origins

Origin of antiproton1

First recorded in 1935–40; anti- + proton
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Example Sentences

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

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

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

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

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

From BBC

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