• synonyms

brittle star

or brit·tle·star

  1. any echinoderm of the class Ophiuroidea, having the body composed of a central, rounded disk from which radiate long, slender, fragile arms.
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Origin of brittle star

First recorded in 1835–45
Also called serpent star.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for brittle-star

Historical Examples of brittle-star

  • Thus, for instance, when a Brittle-star has its nerve-ring severed between each ray, an interesting series of events follows.

    Jellyfish, Starfish, and Sea-Urchins: Being a Research on Primitive Nervous Systems

    G. J. Romanes

  • We saw just now that the brittle-star breaks off its own rays at the slightest alarm.

British Dictionary definitions for brittle-star


  1. any echinoderm of the class Ophiuroidea, occurring on the sea bottom and having five long slender arms radiating from a small central discSee also basket-star
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012