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  1. cotyledon

    • IPA[ˌkɒtɪˈliːdn]

    英式

    • n.
      an embryonic leaf in seed-bearing plants, one or more of which are the first leaves to appear from a germinating seed.;a succulent plant of the stonecrop family, some kinds of which are grown as ornamentals.
    • noun: cotyledon, plural noun: cotyledons

    • 更多解釋
    • IPA[ˌkädəˈlēd(ə)n]

    美式

    • n.
      an embryonic leaf in seed-bearing plants, one or more of which are the first leaves to appear ...

    Oxford American Dictionary