echinoderm

Từ điển WordNet v3.1 - WordNet Dictionary

noun

marine invertebrates with tube feet and five-part radially symmetrical bodies
• Hypernyms:
invertebrate
• Hyponyms:
starfish, sea star, brittle star, brittle-star, serpent star,
basket star, basket fish, sea urchin, crinoid, sea cucumber, holothurian
• Member Holonyms:
Echinodermata, phylum Echinodermata
• Part Meronyms:
water vascular system, ambulacrum, tube foot