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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- brittle bone disease,
- brittle bones,
- brittle diabetes,
- brittle fern,
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. 2019
Examples from the Web for brittle-star
Thus, for instance, when a Brittle-star has its nerve-ring severed between each ray, an interesting series of events follows.
We saw just now that the brittle-star breaks off its own rays at the slightest alarm.The Animal World, A Book of Natural History|Theodore Wood
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
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