Crustacea

A very large class of aquatic animals (phylum Arthropoda) with a chitinous exoskeleton and jointed appendages; e.g., the crab, lobster, crayfish, shrimp, isopods, ostracods, and amphipods. Some, such as certain copepods, are parasitic; others serve as intermediate hosts for parasitic worms which cause disease in humans and various other vertebrates. SEE ALSO: Copepoda. [L. crusta, a crust]

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crus·ta·cea .krəs-'tā-sh(ē-)ə n pl
1) cap a large class of mostly aquatic arthropods that have a chitinous or calcareous and chitinous exoskeleton, a pair of often much modified appendages on each segment, and two pairs of antennae and that include the lobsters, shrimps, crabs, wood lice, water fleas, and barnacles
2) arthropods of the class Crustacea
crus·ta·cean -shən adj or n

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Crus·ta·cea (krəs-taґshe-ə) [L., from crusta shell] a large class of arthropods including the lobsters, crabs, shrimps, wood lice, water fleas, and barnacles.

Medical dictionary. 2011.

Look at other dictionaries:

  • Crustacea — Saltar a navegación, búsqueda ? Crustacea Clasificación científica …   Wikipedia Español

  • Crustacea — Crus*ta ce*a (kr?s t? sh? ?), n. pl. [Neut. pl. of NL. crustaceus pert. to the crust or shell, from L. crusta the hard surfsce of a body, rind, shell.] (Zo[ o]l.) One of the classes of the arthropods, including lobsters and crabs; so called from… …   The Collaborative International Dictionary of English

  • Crustacĕa — (Krebse, Krustenthiere), Klasse der Gliederthiere, weißblütig, flügellos, mit kalkiger, horniger, lederartiger, selten häutiger Körperbedeckung, 2 od. 4 Fühlern, zusammengesetzten od. einfachen, gestielten od. ungestielten Augen, 10 od. mehreren… …   Pierer's Universal-Lexikon

  • Crustacĕa — Crustacĕa, Krebstiere (s.d.) …   Meyers Großes Konversations-Lexikon

  • Crustacea — Crustacĕa, s. Krebstiere …   Kleines Konversations-Lexikon

  • Crustacea —   [zu lateinisch crusta »Kruste«, »Schale«], die Krebse.   …   Universal-Lexikon

  • Crustacea — Crustacea, Krebse, ca. 50000, v. a. meer und süßwasserbewohnende Arten umfassender Unterstamm der ⇒ Arthropoda; werden mit den ⇒ Antennata als ⇒ Mandibulata zusammengefasst. Die C. haben fünf Kopfextremitätenpaare: zwei Paar Antennen, ein… …   Deutsch wörterbuch der biologie

  • Crustacea — 1814, from Mod.L. neut. pl. of crustaceus (animalia), lit. having a crust or shell, from L. crusta crust, rind, bark, hard shell (see CRUST (Cf. crust)). Taken as a zoological classification by Lamarck, 1801; Cuvier (1798) had les insectes… …   Etymology dictionary

  • Crustacea — Krebstiere Verschiedene Krebstiere Systematik Abteilung: Gewebetiere (Eumetazoa) Unterabteilung …   Deutsch Wikipedia

  • Crustacea — Crustacés Crustacés …   Wikipédia en Français

  • Crustacea — vėžiagyviai statusas T sritis ekologija ir aplinkotyra apibrėžtis Nariuotakojų tipo žiaunakvapių potipio bestuburių gyvūnų klasė (Crustacea). Paplitę jūrose ir gėluose vandenyse, kai kurios rūšys gyvena sausumoje. Yra parazitų. atitikmenys: lot.… …   Ekologijos terminų aiškinamasis žodynas

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