echinoderm
Meanings
noun
- An animal of the phylum Echinodermata, comprising radially symmetric, spiny-skinned marine animals including seastars, sea urchins, sea cucumbers, crinoids, and sand dollars.
Pronunciation
Word forms
Etymology
From French échinoderme, corresponding to echino- + -derm, after plural of 18th-century Latin echinoderma.
Related words
Derived words
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