particle : Idioms & Phrases


alpha particle

  • noun a positively charged particle that is the nucleus of the helium atom; emitted from natural or radioactive isotopes
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beta particle

  • noun a high-speed electron or positron emitted in the decay of a radioactive isotope
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dispersed particles

  • noun (of colloids) a substance in the colloidal state
    dispersed phase.
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elementary particle

  • noun (physics) a particle that is less complex than an atom; regarded as constituents of all matter
    elementary particle.
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fundamental particle

  • noun (physics) a particle that is less complex than an atom; regarded as constituents of all matter
    elementary particle.
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heavy particle

  • noun any of the elementary particles having a mass equal to or greater than that of a proton and that participate in strong interactions; a hadron with a baryon number of +1
    baryon.
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identification particle

  • noun a tiny particle of material that can be added to a product to indicate the source of manufacture
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Integrant parts, ∨ particles

  • of bodies, those smaller particles into which a body may be reduced without loss of its original constitution, as by mechanical division.
Webster 1913

j particle

  • noun a neutral meson with a large mass
    J particle.
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k particle

  • noun an unstable meson produced as the result of a high-energy particle collision
    kappa-meson; k-meson; kaon.
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lambda particle

  • noun an electrically neutral baryon with isotopic spin 1
    lambda hyperon.
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particle accelerator

  • noun a scientific instrument that increases the kinetic energy of charged particles
    atom smasher; accelerator.
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particle beam

  • noun a collimated flow of particles (atoms or electrons or molecules)
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particle board

  • noun wallboard composed of wood chips or shavings bonded together with resin and compressed into rigid sheets
    fiberboard; fibreboard.
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particle detector

  • noun a chamber in which particles can be made visible
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particle physics

  • noun the branch of physics that studies subatomic particles and their interactions
    high-energy physics; high energy physics.
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psi particle

  • noun a neutral meson with a large mass
    J particle.
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small-particle pollution

  • noun air pollution caused by fine particles of soot (as from power plants or diesel engines)
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strange particle

  • noun an elementary particle with non-zero strangeness
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subatomic particle

  • noun a body having finite mass and internal structure but negligible dimensions
    particle.
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tau-minus particle

  • noun a lepton of very great mass
    tauon.
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tau-plus particle

  • noun an antilepton of very great mass
    antitauon.
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wave-particle duality

  • noun (physics) the property of matter and electromagnetic radiation that is characterized by the fact that some properties can be explained best by wave theory and others by particle theory
    duality.
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weakly interacting massive particle

  • noun a hypothetical subatomic particle of large mass that interacts weakly with ordinary matter through gravitation; postulated as a constituent of the dark matter of the universe
    WIMP.
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