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词汇 clade
释义

Definition of clade in English:

clade

noun kleɪdklād
Biology
  • A group of organisms believed to comprise all the evolutionary descendants of a common ancestor.

    〔生〕进化枝,分化体,分化单位

    the great ape and human clade
    Example sentencesExamples
    • Species in the two primary clades in the genus tend to be found in different parts of North America.
    • Was survival of the various clades through various biotic crises just a matter of luck?
    • The same mode of increase has been adopted independently in phylogenetically distinct clades.
    • The monilophytes refers to the monophyletic clade of horsetails and ferns.
    • Fossils are often not ancestors of extant taxa, but instead may be extinct sister groups to modern taxa or clades.

Origin

1950s: from Greek klados 'branch'.

Definition of clade in US English:

clade

nounklād
Biology
  • A group of organisms believed to have evolved from a common ancestor, according to the principles of cladistics.

    the great ape and human clade
    Example sentencesExamples
    • Species in the two primary clades in the genus tend to be found in different parts of North America.
    • The monilophytes refers to the monophyletic clade of horsetails and ferns.
    • Was survival of the various clades through various biotic crises just a matter of luck?
    • The same mode of increase has been adopted independently in phylogenetically distinct clades.
    • Fossils are often not ancestors of extant taxa, but instead may be extinct sister groups to modern taxa or clades.

Origin

1950s: from Greek klados ‘branch’.

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