- The definition of an electron is the lightest basic electrically-charged particle.
An example of an electron is what orbits the nucleus of an atom.
electron definition by Webster's New World
Origin: coined (1891) by G. J. Stoney (1826-1911), Irish physicist ; from electr(ic) plush -on
electron definition by American Heritage Dictionary
noun Abbr. e
Origin: electr(ic) + -on1.
electron - Computer Definition
An elementary particle of matter that carries a negative charge of approximately 1.6021
An elementary particle that orbits the nucleus of an atom. There is one electron for every proton in the nucleus, which keeps the atom "electrically neutral," as electrons are considered to have a negative charge and protons a positive charge. Electron Imbalance Creates a Charge When the number of electrons and protons are unequal, the atom is electrically charged. If there are more electrons than protons, it is negatively charged; if fewer electrons, it is positively charged. Electrical generators strip electrons away from their atoms to provide electricity, and electrons are removed, as well as added, to enable other electrical effects (see ion and n-type silicon). See atom, quantum state, wave-particle duality and photon.
electron - Cultural Definition
An elementary particle with a negative charge and a very small mass. Electrons are normally found in orbits around the nucleus of an atom. The chemical reactions that an atom undergoes depend primarily on the electrons in the outermost orbits (the valence electrons).
- The movement of large numbers of electrons through conductors constitutes an electric current.
electron - Medical Definition
noun Abbr. e
electron - Science Definition
- A stable elementary particle in the lepton family having a mass at rest of 9.107 × 10-28 grams and an electric charge of approximately -1.602 × 10-19 coulombs. Electrons orbit about the positively charged nuclei of atoms in distinct orbitals of different energy levels, called shells. Electrons are the primary charge carriers in electric current. Compare positron. See also electromagnetism, elementary particle, ion. See Table at subatomic particle.
- A positron or a negatron. See more at negatron.