electron: Meaning and Definition of


Pronunciation: (i-lek'tron), [key]
— n.
  1. Also calledan elementary particle that is a fundamental constituent of matter, having a negative charge of 1.602 × 10 coulombs, a mass of 9.108 × 10 kilograms, and spin of , and existing independently or as the component outside the nucleus of an atom.
  2. a unit of charge equal to the charge on one electron.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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