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单词 radiolarian
释义

Definition of radiolarian in English:

radiolarian

noun ˌreɪdɪə(ʊ)ˈlɛːrɪənˌreɪdiəˈlɛriən
Zoology
  • A single-celled aquatic animal that has a spherical amoeba-like body with a spiny skeleton of silica. Their skeletons can accumulate as a slimy deposit on the seabed.

    放射虫

    Three classes of the phylum Actinopoda, kingdom Protista (formerly subclass or order Radiolaria)

    Example sentencesExamples
    • Like other radiolarians, Acantharea have an elaborate mineralized skeleton.
    • Therefore, in terms of geological age determined by radiolarians and the ammonoid, this brachiopod fauna should be assigned to the latest Changhsingian.
    • Won regarded the hollow canal structure as one of the indicators of the close relationship of radiolarians and the Porifera.
    • It is also noteworthy that these radiolarians generally have quite fine frameworks and thin shell walls, resulting in semitransparent specimens.
    • However, because of the morphological differences between modern radiolarians and ancient ones, it is difficult to reconstruct precisely the ecology of ancient radiolarians.
adjective ˌreɪdɪə(ʊ)ˈlɛːrɪənˌreɪdiəˈlɛriən
Zoology
  • Relating to or formed from radiolarians.

    放射虫的;由放射虫形成的

    radiolarian ooze
    Example sentencesExamples
    • This indicates that there existed a short period of radiolarian development before the great extinction at the Permian-Triassic transition.
    • Twenty-two samples for radiolarian research were collected from the grayish black, thin-bedded limestone and siliceous limestone of the Baoqing Member and the Mcishan Member.
    • This contradiction cannot be resolved at present due to a lack of Cambrian radiolarian studies, which are needed to provide chronostratigraphic corroboration.
    • Well-preserved Late Cambrian radiolarian faunas were recovered from carbonate rocks of the Cow Head Group of the Great Northern Peninsula of the island of Newfoundland, Canada.
    • Calcareous oozes are common in the low and mid-latitudes while in other places, particularly the high latitudes, radiolarian oozes tend to dominate.

Definition of radiolarian in US English:

radiolarian

nounˌrādēəˈlerēənˌreɪdiəˈlɛriən
Zoology
  • A single-celled aquatic animal that has a spherical amoeba-like body with a spiny skeleton of silica. Their skeletons can accumulate as a slimy deposit on the seabed.

    放射虫

    Three classes of the phylum Actinopoda, kingdom Protista (formerly subclass or order Radiolaria)

    Example sentencesExamples
    • However, because of the morphological differences between modern radiolarians and ancient ones, it is difficult to reconstruct precisely the ecology of ancient radiolarians.
    • Won regarded the hollow canal structure as one of the indicators of the close relationship of radiolarians and the Porifera.
    • It is also noteworthy that these radiolarians generally have quite fine frameworks and thin shell walls, resulting in semitransparent specimens.
    • Like other radiolarians, Acantharea have an elaborate mineralized skeleton.
    • Therefore, in terms of geological age determined by radiolarians and the ammonoid, this brachiopod fauna should be assigned to the latest Changhsingian.
adjectiveˌrādēəˈlerēənˌreɪdiəˈlɛriən
Zoology
  • Relating to or formed from radiolarians.

    放射虫的;由放射虫形成的

    radiolarian ooze
    Example sentencesExamples
    • Twenty-two samples for radiolarian research were collected from the grayish black, thin-bedded limestone and siliceous limestone of the Baoqing Member and the Mcishan Member.
    • This contradiction cannot be resolved at present due to a lack of Cambrian radiolarian studies, which are needed to provide chronostratigraphic corroboration.
    • Well-preserved Late Cambrian radiolarian faunas were recovered from carbonate rocks of the Cow Head Group of the Great Northern Peninsula of the island of Newfoundland, Canada.
    • This indicates that there existed a short period of radiolarian development before the great extinction at the Permian-Triassic transition.
    • Calcareous oozes are common in the low and mid-latitudes while in other places, particularly the high latitudes, radiolarian oozes tend to dominate.
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更新时间:2024/10/19 14:32:45