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crinoid

American

[krahy-noid, krin-oid] / ˈkraɪ nɔɪd, ˈkrɪn ɔɪd /

noun

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.

adjective

belonging or pertaining to the Crinoidea.
lilylike.

crinoid British

/ ˈkraɪnɔɪd, ˈkrɪn- /

noun

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

"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

adjective

of, relating to, or belonging to the Crinoidea
shaped like a lily

"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

crinoid Scientific

/ krī′noid′ /

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.

Other Word Forms

Etymology

Origin of crinoid

1825–35; < Greek krinoeidḗs, equivalent to krín ( on ) lily + -oeidēs -oid

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

crinoid

Only two known crinoid fossils have ever been found with preserved soft tissue.

From Science Daily ● Aug. 21, 2026

The "beads" are fossilised parts of the stem of a marine animal called a crinoid, but they earnt their nickname from St Cuthbert, considered the patron saint of the North of England.

From BBC ● Feb. 19, 2026

A necklace made from a crinoid fossil stem.

From Los Angeles Times ● Dec. 30, 2025

The new species of Oxycomanthus crinoid, or feather star.

From Scientific American ● Mar. 14, 2013

In addition to these three or four circlets of plates, two other elements were once supposed essential to the ideal crinoid: the dorso-central and the oro-central.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" by Various

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023