antiproton Hear it!

antiproton Definition

anti·pro·ton (an′tī prō′tän′; -tē-, -ti-)

noun

the antiparticle of the proton, with the same mass as the proton but a negative charge

antiproton Usage Examples

Converse of object

  • cool: Last year the ATRAP experiment was the first to use cold positrons to cool antiprotons.
  • charge: Negatively charged antiprotons not in the company of a positively charged positron cannot reach the well.

Modifies a noun

  • beam: Both CERN and Fermilab have made precious small amounts of anti-hydrogen atoms by shooting a gas through an antiproton beam.
  • decelerator: Research at CERN, using the antiproton decelerator to produce antiparticles, is described.