a free-swimming crinoid.
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Origin of feather star
First recorded in 1860–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for feather star
The Feather-star, so called in allusion to its tress-like arms.The Ancient Life History of the Earth|Henry Alleyne Nicholson
Now look at this one; the Feather-star, with arms almost like fern-fronds.Madam How and Lady Why|Charles Kingsley
Feather-star, one of the stalkless echinoderms belonging to the Crinoidea.The New Gresham Encyclopedia|Various
British Dictionary definitions for feather star
any free-swimming crinoid echinoderm of the genus Antedon and related genera, living on muddy sea bottoms and having ten feathery arms radiating from a small central disc
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