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composite particle

American  

noun

  1. Physics. a subatomic particle, such as a proton or a neutron, consisting of two or more elementary particles.


composite particle Scientific  
  1. A subatomic particle that is composed of two or more elementary particles. The protons and neutrons in the nucleus of an atom are composite particles, as they are composed of quarks; electrons orbiting the nucleus are not composite particles.

  2. See also elementary particle subatomic particle


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