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electron

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electron


  4  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Electron  \E*lec"tron\,  [NL.,  fr  Gr  ?.  See  {Electric}.] 
  (Physics  &  Chem.) 
  One  of  those  particles,  having  about  one  thousandth  the  mass 
  of  a  hydrogen  atom,  which  are  projected  from  the  cathode  of  a 
  vacuum  tube  as  the  cathode  rays  and  from  radioactive 
  substances  as  the  beta  rays;  --  called  also  corpuscle.  The 
  electron  carries  (or  is)  a  natural  unit  of  negative 
  electricity,  equal  to  3.4  x  10^{-10}  electrostatic  units.  It 
  has  been  detected  only  when  in  rapid  motion;  its  mass,  which 
  is  electromagnetic,  is  practically  constant  at  the  lesser 
  speeds,  but  increases  as  the  velocity  approaches  that  of 
  light.  Electrons  are  all  of  one  kind  so  far  as  known  and 
  probably  are  the  ultimate  constituents  of  all  atoms.  An  atom 
  from  which  an  electron  has  been  detached  has  a  positive 
  charge  and  is  called  a  coelectron. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Electron  \E*lec"tron\,  n.  [NL.,  fr  Gr  'h`lektron.  See 
  {Electric}.] 
  Amber;  also  the  alloy  of  gold  and  silver,  called  {electrum}. 
 
  From  WordNet  r  1.6  [wn]: 
 
  electron 
  n  :  an  elementary  particle  with  negative  charge 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [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) 
 
 




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