triquetrum

triquetrum
A bone on the medial (ulnar) side of the proximal row of the carpus, articulating with the lunate, pisiform, and hamate. SYN: os t. [TA], cubital bone, os pyramidale, os triangulare, pyramidal bone, pyramidale, three-cornered bone, t. bone. [L. triquetrus, three-cornered]

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tri·que·trum trī-'kwē-trəm n, pl tri·que·tra -trə TRIQUETRAL BONE

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n.
a bone of the wrist (see carpus). It articulates with the ulna behind and with the pisiform, hamate, and lunate bones in the carpus.

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tri·que·trum (tri-kweґtrəm) [L.] three cornered; see os triquetrum.

Medical dictionary. 2011.

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  • Triquetrum — de Copérnico El triquetrum del latín tri ( tres ) y quetrum ( esquinas ) era el nombre medieval de un antiguo instrumento astronómico descrito por Ptolomeo en el Almagesto empleado para determinar la altura de cuerpos celestes. Ptolomeo lo llama… …   Wikipedia Español

  • Triquetrum — may refer to: * triquetrum (astronomy), an ancient astronomical instrument * The triquetral bone in the human wrist …   Wikipedia

  • Triquetrum — Tri*que trum, n.; pl. {Triquetra}. [NL.] (Anat.) One of the bones of the carpus; the cuneiform. See {Cuneiform} (b) . [1913 Webster] …   The Collaborative International Dictionary of English

  • Triquetrum — (parallaktisches Lineal, Instrumentum parallacticum, Ptolemäische Regel). astronom. Instrument der Alten, s. Tafel »Alte Astronomische Instrumente«, S. I. Unter T. versteht man auch eine dem Hakenkreuz (Swastika, s. Kreuz, S. 645) ähnliche Figur …   Meyers Großes Konversations-Lexikon

  • Triquetrum — (lat.), parallaktisches Lineal, auch Ptolemäische Regel, eins der ersten astron. Instrumente zum Messen der Zenitdistanz von Gestirnen …   Kleines Konversations-Lexikon

  • Triquetrum (astronomy) — The triquetrum (from the Latin word for triangular ) was the medieval name for an ancient astronomical instrument first described by Ptolemy in the Almagest (V. 12). Also known as Parallactic Rulers , it was used for determining altitudes of… …   Wikipedia

  • triquetrum — tri·que·trum (trī kwēʹtrəm, kwĕtʹrəm) n. pl. tri·que·tra ( kwēʹtrə, kwĕtʹrə) A bone of the wrist in the proximal row of carpal bones.   [Latin, neuter of triquetrus, three cornered. See triquetrous.]   tri·queʹtral ( trəl) adj. * * * …   Universalium

  • triquetrum — noun a) The triquetral bone b) An astronomical instrument …   Wiktionary

  • Triquetrum — Tri|que|trum* [auch ... kve:...] das; s, ...tren <zu lat. triquetrus »dreieckig«> bis ins 17. Jh. gebräuchliches Gerät für astronomische Höhenmessungen …   Das große Fremdwörterbuch

  • triquetrum — tri·quetrum …   English syllables

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