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词汇 Xenarthra
释义

Definition of Xenarthra in English:

Xenarthra

plural nounzɛˈnɑːθrəzəˈnärTHrə
Zoology
  • An order of mammals that comprises the edentates.

    〔动〕贫齿目。亦称EDENTATA

    Also called Edentata
    Example sentencesExamples
    • Let's turn to what is known about the anatomy of the feeding apparatus in Xenarthra and Pholidota.
    • Other members of the Xenarthra may or may not also be included.
    • Unfortunately, information on the condition of feeding apparatus muscles in ant-eating taxa outside the Xenarthra and Pholidota is incomplete.
    • Our results show the existence of four primary lineages of placental mammals: Xenarthra, Afrotheria, Laurasiatheria, and Euarchontoglires.
    • Particularly, we focused on the whole spectrum of mice actually used in biomedical research, on the Xenarthra and the Chiroptera.

Derivatives

  • xenarthran

  • noun & adjectivezɛnˈɑːθrən
    Zoology
    • They are by far the most diverse group of xenarthrans, with 20 species in 8 genera.
      Example sentencesExamples
      • Finally, though extensive character convergence is implied on both alternative trees, there are differences in character evolution scenarios depending on whether pholidotes are allied with xenarthrans or epitheres.
      • Aardvarks were once thought to be closely related to pangolins and xenarthrans.
      • For example, whereas the above-mentioned monographs on giant anteaters are quite complete and have been available for over 100 yr, little was known for other species of xenarthran anteaters.
      • Several groups of xenarthrans successfully crossed the Central American land bridge to North America when it formed in the Pliocene; these included a number of kinds of ground sloths and armadillos.

Origin

Modern Latin (plural), from xeno- 'strange' + Greek arthron 'joint' (because of the peculiar accessory articulations in the vertebrae).

Definition of Xenarthra in US English:

Xenarthra

plural nounzəˈnärTHrə
Zoology
  • An order of mammals that comprises the edentates.

    〔动〕贫齿目。亦称EDENTATA

    Also called Edentata
    Example sentencesExamples
    • Let's turn to what is known about the anatomy of the feeding apparatus in Xenarthra and Pholidota.
    • Other members of the Xenarthra may or may not also be included.
    • Our results show the existence of four primary lineages of placental mammals: Xenarthra, Afrotheria, Laurasiatheria, and Euarchontoglires.
    • Unfortunately, information on the condition of feeding apparatus muscles in ant-eating taxa outside the Xenarthra and Pholidota is incomplete.
    • Particularly, we focused on the whole spectrum of mice actually used in biomedical research, on the Xenarthra and the Chiroptera.

Origin

Modern Latin (plural), from xeno- ‘strange’ + Greek arthron ‘joint’ (because of the peculiar accessory articulations in the vertebrae).

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