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echinoidea

/ˌɛk.ɪˈnɔɪ.di.ə/

翻译: 海胆纲,棘皮动物门下的一个分类纲,包括海胆和沙钱(海钱)。

1 个条目

noun

/ˌɛk.ɪˈnɔɪ.di.ə/C2formalscientific
  • zh海胆纲,棘皮动物门下的一个分类纲,包括海胆和沙钱(海钱)。

A taxonomic class of marine animals within the phylum Echinodermata, which includes sea urchins and sand dollars.

不可数 · 专有名词

  1. Sea urchins and sand dollarsC2formalscientific

    A class of marine animals belonging to the phylum Echinodermata, characterized by a spiny, globular or flattened body and a hard shell called a test.

    zh海胆和沙钱

    • Echinoidea includes both sea urchins and sand dollars.
    • The fossil record of Echinoidea dates back to the Ordovician period.
    • Marine biologists study Echinoidea to understand reef ecosystems.
词形
  • echinoidea plural form
  • echinoidea' possessive plural form
  • echinoidea's possessive singular form