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e·chi·no·derm
 echinoderm
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- pronunciation:
- ih
kI
n
duhrm
- features:
- Word Combinations (noun), Word Parts
| part of speech: |
noun |
| definition: |
any of various marine animals that have parts radiating symmetrically from the center and hard, often spiny outer body walls, such as the starfishes and sea urchins.
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| derivation: |
echinodermal (adj.) |
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