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  1. primordium

    • IPA[prīˈmôrdēəm]

    美式

    • n.
      an organ, structure, or tissue in the earliest stage of development
    • noun: primordium, plural noun: primordia

    • 釋義

    名詞

    • 1. an organ, structure, or tissue in the earliest stage of development the primordium of the pituitary the axils of the leaf primordia
    • 更多解釋
    • IPA[prʌɪˈmɔːdɪəm]

    英式

    • n.
      an organ, structure, or tissue in the earliest stage of development: the primordium of the pituitary the axils of the leaf primordia

    Oxford Dictionary