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echinoderm

e·chi·no·derm

echinoderm

 
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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