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1. Oxford American Dictionary

   tuber

   • IPA[ˈto͞obər]

   美式

   • n.
     a much thickened underground part of a stem or rhizome, e.g. in the potato, serving as a food reserve and bearing buds from which new plants arise.；a tuberous root, e.g. of the dahlia.

   • noun: tuber, plural noun: tubers

2. • 釋義

   n.

   名詞

   • 1. a much thickened underground part of a stem or rhizome, e.g. in the potato, serving as a food reserve and bearing buds from which new plants arise.
   • ▪ a tuberous root, e.g. of the dahlia.
   • 2. a rounded swelling or protuberant part tuber cinereum