Echinodermata E*chi`no*der"ma*ta ([-e]*k[imac]`n[-o]*d[~e]r"m[.a]*t[.a]), n. pl. [NL., fr. Gr. 'echi^nos hedgehog, sea urchin + de`rma, -atos, skin.] (Zo["o]l.) One of the grand divisions of the animal kingdom. By many writers it was formerly included in the Radiata. [Written also {Echinoderma}.] [1913 Webster]

Note: The species usually have an exterior calcareous skeleton, or shell, made of many pieces, and often covered with spines, to which the name. They may be star-shaped, cylindrical, disk-shaped, or more or less spherical. The body consists of several similar parts (spheromeres) repeated symmetrically around a central axis, at one end of which the mouth is situated. They generally have suckers for locomotion. The group includes the following classes: Crinoidea, Asterioidea, Ophiuroidea, Echinoidea, and Holothurioidea. See these words in the Vocabulary, and also {Ambulacrum}. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Echinodermăta — (Echinodermiten), Stachelhäuter, Ordnung der Strahlthiere, mitkugelig , scheiben od. sternförmigem Körper, mit kalkigem, durch eine weiche Haut verbundenem Gerüste, oft mit Kalkstacheln besetzt; Mund oben od. unten, ohne besondere Fangarme; zur… …   Pierer's Universal-Lexikon

  • Echinodermata — Echinodermata, Stachelhäuter, ca. 6000 rezente, wesentlich mehr fossile, ausschließlich marine, stern , kugel oder walzenförmige Arten umfassender Stamm der ⇒ Deuterostomia. Auffallend ist die meist fünfstrahlige Radiärsymmetrie, die das… …   Deutsch wörterbuch der biologie

  • Echinodermata — Échinodermes L …   Wikipédia en Français

  • Echinodermata —   Equinodermos estrellas de mar …   Wikipedia Español

  • Echinodermata — Stachelhäuter Schlangenstern Systematik Reich: Vielzellige Tiere (Metazoa) Abteilung …   Deutsch Wikipedia

  • Echinodermata — noun radially symmetrical marine invertebrates including e.g. starfish and sea urchins and sea cucumbers • Syn: ↑phylum Echinodermata • Hypernyms: ↑phylum • Member Holonyms: ↑Animalia, ↑kingdom Animalia, ↑animal kingdom …   Useful english dictionary

  • Echinodermata — …   Википедия

  • Echinodermata — См. echinoderms …   Dictionary of invertebrate zoology

  • Echinodermata — Phylum of exclusively marine animals. The phylum is divided into 5 classes: the Asteroidea (starfish), the Echinoidea (sea urchins), the Ophiuroidea (brittle stars and basket stars), the Holothuroidea (the sea cucumbers) and the Crinoidea (sea… …   Dictionary of molecular biology

  • Echinodermata — A phylum of Metazoa that includes starfish, sea urchins, sea lilies, and other classes. All but the sea cucumbers (Holothuroidea) are basically radially symmetrical and most possess a calcareous endoskeleton with external spines. They inhabit the …   Medical dictionary

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