pion definition, pion meaning | English dictionary

Search also in: Web News Encyclopedia Images


, pi meson  
      n     (Physics)   a meson having a positive or negative charge and a rest mass 273 times that of the electron, or no charge and a rest mass 264 times that of the electron  
     (C20: from Greek letter pi1 + on)  
English Collins Dictionary - English Definition & Thesaurus  
See also:

piton, prion, PIN, Pioneer

Add your entry in the Collaborative Dictionary.