Electron

5 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  lepton \lepton\ n. (Physics)
     an elementary particle that participates in weak interactions
     but does not participate in the strong interaction; it has a
     baryon number of 0. Some known leptons are the {electron},
     the {negative muon}, the {tau-minus particle}, and the
     neutrinos associated with each of these particles.


     [WordNet 1.5 +PJC]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Electron \E*lec"tron\, n. [NL., fr. Gr. 'h`lektron. See
     {Electric}.]
     1. Amber; also, the alloy of gold and silver, called
        {electrum}. [archaic]
        [1913 Webster]
  
     2. (Physics & Chem.) one of the fundamental subatomic
        particles, having a negative charge and about one
        thousandth the mass of a hydrogen atom. The electron
        carries (or is) a natural unit of negative electricity,
        equal to 3.4 x 10^{-10} electrostatic units, and is
        classed by physicists as a {lepton}. Its mass is
        practically constant at the lesser speeds, but increases
        due to relativistic effects as the velocity approaches
        that of light. Electrons are all of one kind, so far as is
        known. Thus far, no structure has been detected within an
        electron, and it is probably one of the ultimate composite
        constituents of all matter. An atom or group of atoms from
        which an electron has been detached has a positive charge
        and is called a {cation}. Electrons are projected from the
        cathode of vacuum tubes (including television picture
        tubes) as {cathode rays} and from radioactive substances
        as the {beta rays}. Previously also referred to as
        {corpuscle}, an obsolete term. The motion of electrons
        through metallic conductors is observed as an electric
        current. A particle identical to the electron in mass and
        most other respects, but having a positive instead of a
        negative charge, is called a {positron}, or {antielectron}
        [Webster 1913 Suppl. +PJC] Electro-negative

From WordNet (r) 2.0 [wn]:

  electron
       n : an elementary particle with negative charge [syn: {negatron}]

From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:

  58 Moby Thesaurus words for "electron":
     Kern, NMR, alpha particle, antibaryon, antilepton, antimeson, atom,
     atomic nucleus, atomic particle, baryon, beta particle,
     cathode particle, electron affinity, electron cloud, electron pair,
     electron shells, electron spin, electron transfer,
     electron-positron pair, elementary particle, energy level,
     excited state, extranuclear electrons, ground state, ion, lepton,
     lone pair, meson, molecule, monad, negatron, neutron,
     nuclear force, nuclear magnetic resonance, nuclear particle,
     nuclear resonance, nucleon, nucleosynthesis, nucleus, octet,
     orbital electron, photoelectron, photon, proton, quark,
     recoil electron, secondary electron, shared pair, strangeness,
     strong interaction, subvalent electrons, surface-bound electron,
     thermion, triton, valence electron, valence electrons,
     valence shell, wandering electron
  
  

From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:

  electron
       
           A sub-atomic particle with a negative quantised
          {charge}.  A flow of electrical {current} consists of the
          unidirectional (on average) movement of many electrons.  The
          more mobile electrons are in a given material, the greater it
          electrical conductance (or equivalently, the lower its
          resistance).
       
          (1995-10-06)