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brittle star

any echinoderm of the class Ophiuroidea, having the body composed of a central, rounded disk from which radiate long, slender, fragile arms.
Also, brittlestar.
Also called serpent star.
1835-45 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for brittle star
  • The red brittle star in the foreground is an unknown species.
Encyclopedia Article for brittle star

serpent star

any of the 2,000 living species of marine invertebrates comprising the class Ophiuroidea (phylum Echinodermata). Their long, thin arms-usually five and often forked and spiny-are distinctly set off from the small disk-shaped body. The arms readily break off but soon regrow-i.e., are regenerated

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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