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词汇 pluteus
释义

Definition of pluteus in English:

pluteus

nounPlural plutei ˈpluːtɪəsˈpludiəs
Zoology

  • The planktonic larva of some echinoderms, being somewhat triangular with lateral projections.

    〔动〕长腕幼虫

    Example sentencesExamples
    • Brittle stars also have pluteus larvae with skeletal spicules that resemble those of the urchin.
    • Another striking example of metamorphosis is the transformation of the pluteus stage larva of the sea urchin into the adult.

Origin

Late 19th century: from Latin, literally 'barrier' (with reference to its shape).

Definition of pluteus in US English:

pluteus

nounˈpludiəsˈplo͞odēəs
Zoology

  • The planktonic larva of some echinoderms, being somewhat triangular with lateral projections.

    〔动〕长腕幼虫

    Example sentencesExamples
    • Another striking example of metamorphosis is the transformation of the pluteus stage larva of the sea urchin into the adult.
    • Brittle stars also have pluteus larvae with skeletal spicules that resemble those of the urchin.

Origin

Late 19th century: from Latin, literally ‘barrier’ (with reference to its shape).
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