crinoid

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Related to crinoid: class Crinoidea, Sea lilies

cri·noid

(krī′noid′)

Any of various echinoderms of the class Crinoidea, including the sea lilies and feather stars, that are characterized by a cup-shaped body, feathery radiating arms, and either a stalk or a clawlike structure with which they are able to attach to a surface.

[From New Latin Crinoīdea, class name : Greek krinon, lily + Greek -oeidēs, -oid.]

cri′noid′ adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

crinoid

(ˈkraɪnɔɪd; ˈkrɪn-)

(Animals) 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

adj

1. (Animals) of, relating to, or belonging to the Crinoidea

2. shaped like a lily

[C19: from Greek krinoeidēs lily-like]

criˈnoidal adj

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

cri•noid

(ˈkraɪ nɔɪd, ˈkrɪn ɔɪd)

n.

1. any echinoderm of the class Crinoidea, having a cup-shaped body with branched radiating arms, comprising the sea lilies and feather stars.

adj.

2. lilylike.

[1825–35; < Greek krinoeidḗs=krín(on) lily + -oeidēs -oid]

cri•noi′dal, adj.

cri·noid

(krī′noid′)

Any of various invertebrate sea animals having a cup-shaped body, feathery arms, and a stalk by which they attach themselves to a surface. Sea lilies and feather stars are types of crinoids.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonymsLegend:

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Noun	1.	crinoid - primitive echinoderms having five or more feathery arms radiating from a central disk echinoderm - marine invertebrates with tube feet and five-part radially symmetrical bodies class Crinoidea, Crinoidea - sea lilies sea lily - crinoid with delicate radiating arms and a stalked body attached to a hard surface comatulid, feather star - free-swimming stalkless crinoid with ten feathery arms; found on muddy sea bottoms
Adj.	1.	crinoid - of or relating to or belonging to the class Crinoidea

References in periodicals archive ?

Nervous system development of two crinoid species, the sea lily Metacrinus rotundus and the feather star Oxycomanlhus japonicus.

Abbreviated Development of the Brooding Brittle Star Ophioplocus esmarki

Isolated crinoid ossicles, reflecting complete post-mortem disarticulation of individuals during extended residence within the taphonomically active zone (Lewis 1980), represent one of the most abundant bioclasts in the Paleozoic rock record (Lowenstam 1957; Ausich 1997).

Notes on Additional Material Associated with the Type Specimens of Diphuicrinus ohioensis (Echinodermata: Crinoidea) from the Middle Pennsylvanian of Southeastern Ohio

In either case, fossilized bivalves, crinoid fragments, gastropods, shark teeth, sea urchin spines, fish bones, coral, fossilized traces (tracks, burrows, etc.) and other marine fossils may be identified.

CAPITALIZING ON PRE-EXISTING STUDENT ENGAGEMENT WITH FOSSILS: A GATEWAY TO GENERATE STUDENT INTEREST, PARTICIPATION, AND LEARNING

Mainly crinoid's fossils were witnessed on the weathered surfaces.

Diagenetic History and Microfacies Analysis of Upper Permian Wargal Limestone in the Central Salt Range, Pakistan

and Sebek, O.: 1997, Chemical composition of the crinoid skeletal remains (Echinodermata) in weathered limestones of the Bohemian Lower Devonian (Barrandian area).

WEATHERING BY DOLOMITE DISSOLUTION RESPONSIBLE FOR THE FORMATION OF AN IMPORTANT PALAEOTOLOGICAL LOCALITY IN THE PRAGUE SYNFORM

War Eagle Cavern--Features an underground stream, an abundance of crinoid fossils, unusual dome pits, onyx and much more.

NORTHWEST ARKANSAS \ ATTRACTIONS

If their crinoid ancestors spent their entire adult lives similarly anchored to one spot, they could not have spread worldwide without help.

Rare fossil found in world War I trench

I personally like going across the road to Crinoid Hill to hunt for marine fossils.

Hornswoggle 2017: Continuing the Legacy of Elliott Higgins An Interview with Karl Kemm

Although most crinoid fossils are from "spindly, plant-like animals anchored to sea floor rocks," the 1 to 4 millimeter star-shaped parts of these crinoids that the scientists dug up were used to grab and hold onto objects but were not found attached to anything.

Fossils Show Evolution Of Early Marine Life

These differences included (1) two species, sand star and black crinoid, whose densities differed between energized and unenergized cables, (2) three species, thin sea pen, red octopus, and white sea urchin, which differed between cable sides, (3) seven species, white-plumed anemone, spot prawn, thin sea pen, California sea cucumber, red octopus, Urticina spp., and black crinoid, which exhibited bottom depth differences, and (4) two species, thin sea pen and sand star, whose densities varied among years.

A Comparison of Fishes and Invertebrates Living in the Vicinity of Energized and Unenergized Submarine Power Cables and Natural Sea Floor off Southern California, USA

Inspect them closely and you may make out the curve of a gastropod, the cone-shaped shell of a cephalopod, or a disc or rod-like structure that was once a piece of a crinoid stem.

Stone stories--the rocks and pebbles of Lake Ontario's south shore

Crinoids tended to grow on the edges of the reefs, so reef limestone is usually surrounded by limestone containing many crinoid fossils.