torus

torus
1. [TA] A rounded swelling, such as that caused by a contracting muscle. SYN: elevation [TA]. 2. A geometric figure formed by the revolution of a circle around the base of any of its arcs, such as the convex molding at the base of a pillar. [L. swelling, knot, bulge]
- t. frontalis a slight prominence on the frontal bone at the root of the nose.
- t. levatorius [TA] the bulge in the lateral wall of the nasopharynx, below the opening of the auditory tube, produced by the levator veli palatini muscle. SYN: elevation of levator palati, levator cushion, levator swelling.
- mandibular t., t. mandibularis an exostosis protruding from the lingual aspect of the mandible, usually opposite the premolar teeth.
- t. manus archaic term for the carpal bones.
- t. occipitalis an occasional ridge near the superior nuchal line of the occipital bone.
- palatine t., t. palatinus an exostosis protruding from the midline of the hard palate.
- t. tubarius [TA] a ridge in the nasopharyngeal wall posterior to the opening of the pharyngotympanic (auditory) tube, caused by the projection of the cartilaginous portion of this tube. SYN: eustachian cushion, tubal prominence.
- t. uretericus SYN: interureteric crest.
- t. uterinus a transverse ridge on the back part of the cervix of the uterus, formed by the junction of the rectouterine folds.

* * *

to·rus 'tōr-əs, 'tȯr- n, pl to·ri 'tō(ə)r-.ī, 'tȯ(ə)r-, -.ē
1) a doughnut-shaped surface generated by a circle rotated about an axis in its plane that does not intersect the circle
2) a smooth rounded anatomical protuberance (as a bony ridge on the skull) <a supraorbital \torus>

* * *

to·rus (torґəs) pl. toґri [L. “a round swelling,” “protuberance”] 1. a bulging projection or swelling. 2. the doughnut-shaped geometric figure produced by rotating a circle about an axis that lies in the same plane as the circle but does not cut the circle.

Medical dictionary. 2011.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • torus — (n.) 1560s, from L. torus a swelling, bulge, knot; cushion, couch …   Etymology dictionary

  • torus — tȏrus m DEFINICIJA 1. pov. arhit. element baze jonskog stupa, polukružan u presjeku 2. arhit. ukrasni plastični element građevine ili njenih dijelova, vrlo istaknute profilacije i kružnog ili polukružnog presjeka 3. mat. ploha u obliku prstena… …   Hrvatski jezični portal

  • Torus — To rus (t[=o] r[u^]s), n.; pl. {Tori} (t[=o] r[imac]). [L., a round, swelling, or bulging place, an elevation. Cf. 3d {Tore}.] [1913 Webster] 1. (Arch.) A large molding used in the bases of columns. Its profile is semicircular. See Illust. of… …   The Collaborative International Dictionary of English

  • Torus — (lat.), 1) Pfühl, Ruhelager, Bett, bes. Ehebett; daher Tori conscensio, die Besteigung des Ehebetts; 2) (Pfuhl), ein großes erhabenes Glied in dem Fuße des Schaftgesimses; 3) hervorragende, fleischige Theile des Körpers, bes. Muskeln; 4) (Bot.).… …   Pierer's Universal-Lexikon

  • Torus — (lat.), Pfühl, Polster; Ehebett; der Wulst an der Basis der ionischen Säule (s. Säule). In der Botanik der die Blütenteile tragende Teil der Blütenachse (s. Blüte, S. 87) und die verdickte Stelle in der Schließhaut der behöften Tüpfel des… …   Meyers Großes Konversations-Lexikon

  • Torus — (lat.), Pfühl, Ruhelager, bes. Ehebett; der Wulst an der Basis der ion. Säule …   Kleines Konversations-Lexikon

  • Torus — Torus, lat., Kissen, Polster, Bett, Ehebett; Muskel; torös, muskelstark …   Herders Conversations-Lexikon

  • torus — [tō′rəs, tôr′əs] n. pl. tori [tôr′rī΄, tôr′ī] [L, a bulge, muscle] 1. Anat. any rounded projection or swelling 2. Archit. a large, convex molding used at the base of columns, etc., just above the plinth 3. Bot. a) RECEPTACLE (sense 3a) …   English World dictionary

  • Torus — Not to be confused with Taurus (disambiguation). This article is about the surface and mathematical concept of a torus. For other uses, see Torus (disambiguation). A torus As the distance to th …   Wikipedia

  • Torus — Filmdaten Deutscher Titel Torus – Das Geheimnis aus einer anderen Welt Originaltitel Epoch …   Deutsch Wikipedia

  • TORUS — I. TORUS Graece ςτιβὰς, item ςτρωμνὴ, a torqueo. Scaligero est quivis funis ex loris tetortis: inde pro lecto, quod toris tenderetur: vel ab intortis herbis, quia antiqui super toris plicatisque herbis ac graminibus humi ad mensam discumbebant,… …   Hofmann J. Lexicon universale

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”