English noun: sea urchin | |||
1. | sea urchin (animal) shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells | ||
Broader (hypernym) | echinoderm | ||
Narrower (hyponym) | Echinus esculentus, edible sea urchin, heart urchin, sand dollar | ||
Member meronym | class Echinoidea, Echinoidea | ||