- any echinoderm of the class Crinoidea, having a cup-shaped body to which are attached branched, radiating arms, comprising the sea lilies, feather stars, and various fossil forms.
- belonging or pertaining to the Crinoidea.
Origin of crinoid
1825–35; < Greek krinoeidḗs, equivalent to krín(on) lily + -oeidēs -oid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for crinoid
Applied to the cup-shaped body of a Crinoid (Echinodermata).The Ancient Life History of the Earth
Henry Alleyne Nicholson
The ossicles, or plates which cover the dorsal surface, are free, making the crinoid an animal of innumerable joints.The Sea-beach at Ebb-tide
Augusta Foote Arnold
This subkingdom comprises at present such familiar forms as the crinoid, the starfish, and the sea urchin.
The cystoid reaches its climax, but there appear now two higher types of echinoderms,—the crinoid and the starfish.
The clay came into notice late in the 18th century on account of the local abundance of the crinoid Apiocrinus Parkinsoni.
- any primitive echinoderm of the class Crinoidea, having delicate feathery arms radiating from a central disc. The group includes the free-swimming feather stars, the sessile sea lilies, and many stemmed fossil forms
- of, relating to, or belonging to the Crinoidea
- shaped like a lily
C19: from Greek krinoeidēs lily-like
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
Word Origin and History for crinoid
1836, Latinized from Greek krinoeides "lily-like," from krinon "lily" (a foreign word of unknown origin) + -oeides "like" (see -oid).
Online Etymology Dictionary, © 2010 Douglas Harper
- Any of various marine echinoderms of the class Crinoidea. Crinoids have a cup-shaped body with five or more feathery arms and sometimes a stalk for attachment to a surface. The arms contain reproductive organs and sensory tube feet. Crinoids were common during the Paleozoic Era and are important index fossils. Sea lilies and feather stars are types of crinoids.
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