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1. Oxford Dictionary

   substituent

   • IPA[səbˈstɪtjʊənt]

   英式

   • n.
     an atom or group of atoms taking the place of another atom or group or occupying a specified position in a molecule

   • noun: substituent, plural noun: substituents

2. • 釋義

   n.

   名詞

   • 1. an atom or group of atoms taking the place of another atom or group or occupying a specified position in a molecule displacement of alkyl substituents the presence of substituent hydrogen atoms
3. • 更多解釋

   substituent

   • IPA[ˌsəbˈstiCH(əw)ənt]

   美式

   • n.
     an atom or group of atoms taking the place of another atom or group or occupying a specified ... displacement of alkyl substituents the presence of substituent hydrogen atoms

   Oxford American Dictionary