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{%type%} Definitions

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n. - Sea urchins and sand dollars.

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Usage examples (6)
  • These lowly animals belong to that group of the star-fish class (Echinodermata), the species of which possess generally spheroidal bodies, built up of multitudinous calcareous...
  • Echinoidea, which has the literal meaning spiny skin.
  • The mouth of the Echinoidea, often referred to as Aristotle's Lantern because of the way he first described it, is located at the central most part of the animal's...
  • Echinoidea.
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