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  1. Oxford American Dictionary

    polyphyletic

    • IPA[ˌpälēˌfīˈledik]

    美式

    • adj.
      (of a group of organisms) derived from more than one common evolutionary ancestor or ancestral group and therefore not suitable for placing in the same taxon
    • 釋義

    形容詞

    • 1. (of a group of organisms) derived from more than one common evolutionary ancestor or ancestral group and therefore not suitable for placing in the same taxon the aschelminthes may be a polyphyletic grade
    • 更多解釋

    polyphyletic

    • IPA[ˌpɒlɪfʌɪˈlɛtɪk]

    英式

    • adj.
      (of a group of organisms) derived from more than one common evolutionary ancestor or ancestral ... the aschelminthes may be a polyphyletic grade

    Oxford Dictionary