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单词 Tardigrada
释义

Definition of Tardigrada in English:

Tardigrada

plural noun ˌtɑːdɪˈɡreɪdətärˈdiɡrədə
Zoology
  • A small phylum that comprises the water bears.

    Example sentencesExamples
    • The phylum Tardigrada is often classified as one of the ‘lesser-known’ groups of protostomes.
    • However, on both morphological and molecular grounds it seems that two groups that are sometimes given phylum rank, the Onychophora and the Tardigrada, are the closest living relatives of the arthropods.
    • Other ecdysozoan phyla include Nematoda, Tardigrada, and Onychophora; this classification thus removes onychophorans from the Arthropoda and makes them an outgroup.
    • Despite their overall abundance and cosmopolitan distribution, the Tardigrada have been relatively neglected by invertebrate zoologists.
    • The recently published Ecdysozoa hypothesis suggests a closer relationship of the Scalidophora, Nematode, Nematomorpha, Tardigrada, Onychophora, and Arthropoda.

Origin

Modern Latin (plural), from Latin tardigradus, from tardus 'slow' + gradi 'to walk'.

 
 

Definition of Tardigrada in US English:

Tardigrada

plural nountärˈdiɡrədə
Zoology
  • A small phylum that comprises the water bears.

    Example sentencesExamples
    • The recently published Ecdysozoa hypothesis suggests a closer relationship of the Scalidophora, Nematode, Nematomorpha, Tardigrada, Onychophora, and Arthropoda.
    • Other ecdysozoan phyla include Nematoda, Tardigrada, and Onychophora; this classification thus removes onychophorans from the Arthropoda and makes them an outgroup.
    • The phylum Tardigrada is often classified as one of the ‘lesser-known’ groups of protostomes.
    • Despite their overall abundance and cosmopolitan distribution, the Tardigrada have been relatively neglected by invertebrate zoologists.
    • However, on both morphological and molecular grounds it seems that two groups that are sometimes given phylum rank, the Onychophora and the Tardigrada, are the closest living relatives of the arthropods.

Origin

Modern Latin (plural), from Latin tardigradus, from tardus ‘slow’ + gradi ‘to walk’.

 
 
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更新时间:2024/9/21 10:59:25