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1. Oxford Dictionary

   bacterium

   • IPA[bakˈtɪərɪəm]

   英式

   • n.
     a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease.

   • noun: bacterium, plural noun: bacteria

2. • 相關詞

   coliform bacterium

   • n.
     a rod-shaped bacterium, especially Escherichia coli and members of the genus Aerobacter, found ...

   Oxford American Dictionary

3. • 更多解釋

   bacterium

   • IPA[bakˈtirēəm]

   美式

   • n.
     a member of a large group of unicellular microorganisms which have cell walls but lack ...

   Oxford American Dictionary