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1. Oxford American Dictionary

   gamma

   • IPA[ˈɡamə]

   美式

   • n.
     the third letter of the Greek alphabet (Γ, γ), transliterated as ‘g.’.；denoting the third in a series of items, categories, etc.

   • noun: gamma, plural noun: gammas

2. • 釋義

   n.

   名詞

   • 1. the third letter of the Greek alphabet (Γ, γ), transliterated as ‘g.’.
   • ▪ denoting the third in a series of items, categories, etc.
   • ▪ relating to gamma rays gamma detector
   • ▪ the third (usually third-brightest) star in a constellation Gamma Orionis
   • ▪ a unit of magnetic field strength equal to 10−5 oersted.