echinoderm

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun marine invertebrates with tube feet and five-part radially symmetrical bodies

From French échinoderme, corresponding to echino- + -derm, after plural of 18th-century Latin echinoderma.

Echinoderm resemblances unmistakable despite local contradictory evidences. — At the mountains of madness, H. P. (Howard Phillips) Lovecraft
In this torpor the echinoderms and even the molluscs live to-day. — Creative Evolution, Bergson, Henri
The zoophyte branch offered some very unusual specimens from its two groups, the polyps and the echinoderms. — Twenty Thousand Leagues Under the Seas: An Underwater Tour of the World, Jules Verne

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