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1. Oxford Dictionary

   residuum

   • IPA[rɪˈzɪdjʊəm]

   英式

   • n.
     a chemical residue.；a class of society that is unemployed and without privileges or opportunities

   • noun: residuum, plural noun: residua

2. • 釋義
   • 相關詞

   n.

   名詞

   • 1. technical a chemical residue.
   • 2. a class of society that is unemployed and without privileges or opportunities the urban residuum

   residua

   • plural form of residuum

   Oxford American Dictionary

   residua

   • plural form of residuum

   Oxford Dictionary

3. • 更多解釋

   residuum

   • IPA[rəˈzij(ə)wəm]

   美式

   • n.
     a substance or thing that remains or is left behind, in particular, a chemical residue.

   Oxford American Dictionary