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词汇 detorsion
释义

Definition of detorsion in English:

detorsion

noundɪˈtɔːʃ(ə)ndēˈtôrSHən
mass nounZoology
  • (in gastropod molluscs) the evolutionary reversion of a group to a primitive linear body plan.

    〔动〕(腹足纲软体动物的)反扭转。比较TORISON

    Compare with torsion
    Example sentencesExamples
    • The latter group includes radically modified animals, the Opisthobranchia and Pulmonata, which undergo detorsion and essentially re-evolve bilateral symmetry.
    • Some species undergo reverse torsion (‘detorsion’), but evidence of having passed through a twisted phase can be seen in the anatomy of these forms.
    • The bodies of most members of this group show evidence of detorsion.

Definition of detorsion in US English:

detorsion

noundēˈtôrSHən
Zoology
  • (in gastropod mollusks) the evolutionary reversion of a group to a primitive linear body plan.

    〔动〕(腹足纲软体动物的)反扭转。比较TORISON

    Compare with torsion
    Example sentencesExamples
    • Some species undergo reverse torsion (‘detorsion’), but evidence of having passed through a twisted phase can be seen in the anatomy of these forms.
    • The latter group includes radically modified animals, the Opisthobranchia and Pulmonata, which undergo detorsion and essentially re-evolve bilateral symmetry.
    • The bodies of most members of this group show evidence of detorsion.
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