Shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells.
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"Sea urchin" Quotes from Famous Books ![]() ![]() — Popular Science Monthly Volume 86 |
Words linked to "Sea urchin" : heart urchin, echinoderm, edible sea urchin, Echinoidea, sand dollar, class Echinoidea, Echinus esculentus |
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