Last Updated
：2025/11/20
echinoderm
Noun
Japanese Meaning
棘皮動物: 棘皮動物門に属する動物で、体が放射相称であり、ヒトデ、ウニ、ナマコ、シーノコ、サンドダラーなど海洋に生息する棘やトゲのある皮膚を持つ生物を指す。
（ plural ）
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An animal of the phylum Echinodermata, comprising radially symmetric, spiny-skinned marine animals including seastars, sea urchins, sea cucumbers, crinoids, and sand dollars.
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echinoderm
While snorkeling, I gently turned over a small echinoderm to observe its tube feet without harming it.
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While snorkeling, I gently turned over a small echinoderm to observe its tube feet without harming it.
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