Chordata

The phylum that includes the vertebrates, defined by possession of: 1) a single dorsal nerve cord (the brain and spinal cord of mammals); 2) a cartilaginous rod, the notochord, which forms dorsal to the primitive gut in the early embryo, and is surrounded and replaced by the vertebral column in the subphylum vertebrata; 3) by presence at some stage in development of gill slits in the pharynx or throat. [L. chorda, fr. G. chorde, a string]

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Chor·da·ta kȯr-'dät-ə, -'dāt-ə n pl a phylum comprising animals having at least at some stage of development a more or less well-developed notochord, a dorsally situated central nervous system, and gill clefts in the walls of the pharynx and including the vertebrates, lancelets, and tunicates
chor·date 'kȯ(ə)r-.dāt, 'kȯrd-ət n or adj

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Chor·da·ta (kor-daґtə) [L. chordatus having a cord] a phylum of the animal kingdom comprising all animals that have a notochord during some stage of their development. It includes the subphyla Cephalochordata, Urochordata, and Vertebrata.

Medical dictionary. 2011.

Look at other dictionaries:

  • Chordata — Chor*da ta, n. pl. [NL., fr. L. chorda cord.] (Zo[ o]l.) A comprehensive division of animals including all Vertebrata together with the Tunicata, or all those having a dorsal nervous cord. [1913 Webster] …   The Collaborative International Dictionary of English

  • Chordata — Chordata, Chordatiere, über 56000 Arten umfassender Stamm der Deuterostomia mit den Unterstämmen ⇒ Tunicata, Manteltiere; ⇒ Acrania, Schädellose; ⇒ Copelata; ⇒ Vertebrata, Wirbeltiere. Die wichtigsten Kennzeichen des Bauplans, die häufig nur noch …   Deutsch wörterbuch der biologie

  • Chordata — er den latinske betegnelse for dyrerækken for rygstrengsdyr. Se artiklen: Rygstrengsdyr …   Danske encyklopædi

  • Chordata — 1880, Mod.L., from L. chorda cord (see CORD (Cf. cord)) + ending from Vertebrata …   Etymology dictionary

  • Chordata —   Cordados Rango temporal: Cámbrico Reciente …   Wikipedia Español

  • Chordata — Chordés  Pour l’article homophone, voir Cordée …   Wikipédia en Français

  • Chordata — Chordatiere Tokeh (Gekko gecko) Systematik Reich: Tiere (Animalia) Unterreich …   Deutsch Wikipedia

  • Chordata — chordiniai statusas T sritis zoologija | vardynas atitikmenys: lot. Chordata angl. chordates vok. Chordatiere rus. хордовые pranc. chordés ryšiai: platesnis terminas – gyvūnai siauresnis terminas – stuburiniai …   Paukščių pavadinimų žodynas

  • Chordata — noun comprises true vertebrates and animals having a notochord • Syn: ↑phylum Chordata • Hypernyms: ↑phylum • Member Holonyms: ↑Animalia, ↑kingdom Animalia, ↑animal kingdom …   Useful english dictionary

  • Chordata — …   Википедия

  • Chordata — /kawr day teuh, dah /, n. Zool. the phylum comprising the chordates. [1875 80; < NL, equiv. to chord(a) (see CHORD1) + L ata, neut. pl. of ATUS ATE1] * * * …   Universalium

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