Jisho

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Noun
1. echinoderm
Wikipedia definition
2. EchinodermEchinoderms (Phylum Echinodermata) are a phylum of marine animals. The adults are recognized easily by their (usually five-point) radial symmetry, and include such well known animals as sea stars, sea urchins, sand dollars, and sea cucumbers. Echinoderms are found at every ocean depth, from the intertidal zone to the abyssal zone. The phylum contains about 70,000 living species, making it the second-largest grouping of deuterostomes (a superphylum), after the chordates.
Read “Echinoderm” on English Wikipedia
Read “棘皮動物” on Japanese Wikipedia
Read “Echinoderm” on DBpedia

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