1. An unpaired (azygous) anatomical structure. 2. SYN: a. vein. [G. a- priv. + zygon, a yoke]
- a. continuation (of the inferior vena cava) a congenital anomaly in which the infrahepatic portion of the vena cava fails to form, and venous drainage of the lower body is maintained through a persistent right supracardinal vein, which becomes a large a. vein.

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azy·gos ā-'zī-gəs n an azygos anatomical part
azy·gos also azy·gous (')ā-'zī-gəs adj not being one of a pair <the \azygos muscle of the uvula> <the \azygos system of veins>

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az·y·gos (azґĭ-gəs) (ə-ziґgəs) [Gr., from a-1 + Gr. zygon yoke] 1. unpaired. 2. any unpaired part, such as the azygos vein.

Medical dictionary. 2011.

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  • azygos — [ azigos ] adj. et n. f. • 1540; gr. azugos « non accouplé » ♦ Anat. Veine azygos, ou n. f. l azygos : importante veine impaire qui relie le système de la veine cave inférieure au tronc de la veine cave supérieure, cheminant au flanc antérieur… …   Encyclopédie Universelle

  • azygos — m. anat. Ácigos. Medical Dictionary. 2011 …   Diccionario médico

  • Azygos — Azygos, die unpaarige Vene, welche in der rechten Brust liegt und die obere und untere Hohlvene verbindet …   Herders Conversations-Lexikon

  • azygos — AZYGÓS adj. invar. v. azigos. Trimis de LauraGellner, 13.09.2007. Sursa: DN …   Dicționar Român

  • Azygos — In anatomy, azygos, from the Greek άζυξ, refers to a structure that is unpaired. This is relatively unusual, as most elements of anatomy reflect bilateral symmetry. Another term for the same concept is impar.Well known structures incorporating… …   Wikipedia

  • azygos — (a zi gos ) adj. et s. f. Terme d anatomie. La veine azygos ou, simplement, l azygos, veine qui est située sur le côté droit et antérieur de la portion thoracique du rachis, et qui établit une communication entre la veine cave supérieure et l… …   Dictionnaire de la Langue Française d'Émile Littré

  • azygos — I. noun Etymology: New Latin, from Greek, unyoked, from a + zygon yoke more at yoke Date: 1646 an azygos anatomical part II. adjective also azygous Date: 1681 not being one of a pair ; single < an azygos vein …   New Collegiate Dictionary

  • azygos — a̱zygos [aus gr. ἀζυγος (Nebenform von ἀζυξ) = unverbunden]: „unpaarig“ (bes. von Organen und Gefäßen gesagt); z. B. in der Fügung ↑Vena azygos …   Das Wörterbuch medizinischer Fachausdrücke

  • Azygos — neporinis statusas T sritis gyvūnų anatomija, gyvūnų morfologija atitikmenys: lot. Azygos ryšiai: platesnis terminas – pagrindiniai terminai sinonimas – lykinis …   Veterinarinės anatomijos, histologijos ir embriologijos terminai

  • azygos vein — n any of a system of three veins which drain the thoracic wall and much of the abdominal wall and which form a collateral circulation when either the inferior or superior vena cava is obstructed esp a vein that receives blood from the right half… …   Medical dictionary

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