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Noun: electron  i'lek,trón
  1. An elementary particle that orbits the nucleus in atoms and is responsible for the flow of electricity; negative charge of 1.60217649x10^-19 coulombs and mass 9.109382x10^-31 kg
    "The flow of electrons through the wire created an electric current";
    - negatron

Derived forms: electrons

Type of: lepton[2]

Encyclopedia: Electron, Washington