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1. Oxford American Dictionary

   dosage

   • IPA[ˈdōsij]

   美式

   • n.
     the size or frequency of a dose of a medicine or drug；a level of exposure to or absorption of ionizing radiation.

   • noun: dosage, plural noun: dosages

2. • 釋義

   n.

   名詞

   • 1. the size or frequency of a dose of a medicine or drug a dosage of 450 milligrams a day there are recommendations about dosage for elderly patients
   • ▪ a level of exposure to or absorption of ionizing radiation.