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antilepton

American  
[an-tee-lep-ton, an-tahy-] / ˌæn tiˈlɛp tɒn, ˌæn taɪ- /

noun

Physics.
  1. the antiparticle of a lepton.


antilepton British  
/ ˌæntɪˈlɛptən /

noun

  1. physics the antiparticle of any of the leptons

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

antilepton Scientific  
/ ăn′tē-lĕptŏn,ăn′tī- /
  1. The antiparticle that corresponds to a lepton.


Etymology

Origin of antilepton

anti- + lepton 2