Yahoo奇摩字典 網頁搜尋

登入
  1. 更多

搜尋結果

  1. Oxford American Dictionary

    germ layer

    • IPA[jərm ˈlāər]
    • n.
      each of the three layers of cells (ectoderm, mesoderm, and endoderm) that are formed in the early embryo.

    • noun: germ layer, plural noun: germ layers

    • 更多解釋

    germ layer

    • n.
      each of the three layers of cells (ectoderm, mesoderm, and endoderm) that are formed in the ...

    Oxford Dictionary