crinoid


crinoid
crinoidal, adj.
/kruy"noyd, krin"oyd/, n.
1. 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.
adj.
2. belonging or pertaining to the Crinoidea.
3. lilylike.
[1825-35; < Gk krinoeidés, equiv. to krín(on) lily + -oeides -OID]

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▪ class of echinoderm
      any marine invertebrate of the class Crinoidea (phylum Echinodermata) usually possessing a somewhat cup-shaped body and five or more flexible and active arms. The arms, edged with feathery projections (pinnules), contain the reproductive organs and carry numerous tube feet with sensory functions. The tentacles have open grooves, along which cilia (minute, hairlike projections) sweep food particles toward the mouth.

      The distinctive limy tests (internal skeletons of calcium carbonate) of crinoids make the thousands of extinct species (together with extinct echinoderms of similar form) important Paleozoic index fossils. About 700 living species are known, mainly from deep waters.

      For more information about living crinoid species and groups, see feather star; sea lily.

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Universalium. 2010.

Look at other dictionaries:

  • crinoid — CRINOÍD s. v. crin de mare. Trimis de siveco, 05.08.2004. Sursa: Sinonime  crinoíd s. n., pl. crinoíde Trimis de siveco, 19.03.2005. Sursa: Dicţionar ortografic  CRINOÍD crinoide n. 1) la pl. Clasă de animale echinoderme în formă de floare… …   Dicționar Român

  • Crinoid — Cri noid (kr[imac] noid), a. [See {Crinoidea}.] (Zo[ o]l.) Crinoidal. n. One of the Crinoidea. [1913 Webster] …   The Collaborative International Dictionary of English

  • crinoid — 1836, Latinized from Gk. krinoeides lily like, from krinon lily (a foreign word of unknown origin) + oeides like (see OID (Cf. oid)) …   Etymology dictionary

  • crinoid — [krī′noid΄, krin′oid΄] adj. [Gr krinoeidēs, lilylike < krinon, lily + eidēs, OID] 1. lily shaped 2. designating or of a class (Crinoidea) of echinoderms, some of which are flowerlike in form and are anchored by a stalk, others of which are… …   English World dictionary

  • Crinoid — Crinoids Temporal range: Ordovician Recent …   Wikipedia

  • crinoid — noun Etymology: ultimately from Greek krinon lily Date: 1847 any of a large class (Crinoidea) of echinoderms usually having a somewhat cup shaped body with five or more feathery arms compare feather star, sea lily • crinoid adjective …   New Collegiate Dictionary

  • crinoid — 1. noun One of the numerous animals that make up the Crinoidea class; the feather star or sea lily . 2. adjective Relating to or sharing the qualities and features of the Crinoidea class …   Wiktionary

  • crinoid — [ krɪnɔɪd, krʌɪnɔɪd] noun Zoology an echinoderm of a class (Crinoidea) that comprises the sea lilies and feather stars. Derivatives crinoidal nɔɪd(ə)l adjective Origin mod. L. Crinoidea, from Gk krinoeidēs lily like , from krinon lily …   English new terms dictionary

  • crinoid — cri·noid …   English syllables

  • crinoid — cri•noid [[t]ˈkraɪ nɔɪd, ˈkrɪn ɔɪd[/t]] n. 1) ivt any echinoderm of the class Crinoidea, having a cup shaped body with branched radiating arms, comprising the sea lilies and feather stars 2) lilylike • Etymology: 1825–35; < Gk… …   From formal English to slang


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