sea urchin

English dictionary entry

Meanings

noun

Any of many marine echinoderms, of the class Echinoidea, commonly found in shallow water, having a complex chewing structure named Aristotle's lantern.

sēʹ ûr'tsĭn /ˈsi ˌɝtʃɪ̈n/ LL-Q1860 (eng)-Persent101-sea urchin.wav

sea urchin sea urchins

From sea + urchin (“hedgehog”), reflecting a similarity in appearance to a hedgehog.

sand dollar

sea-urchin cactus

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