American Heritage Dictionary
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Century Dictionary
GNU Webster's 1913
WordNet
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Elsewhere on the web
This is badly broken in the charged lepton sector, so one can write explicitly what the Lagrangian is, and the neutrino Majorana matrix respects the muon-tauon interchange, whereas the charged matrix does not.— A Quantum Diaries Survivor
Also, the mystery of multi-muon production that was recently reported at Fermilab could be tackled with a gamma-gamma collider.— New Scientist - Online News

American Heritage Dictionary (1)
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