Umbilicus
Umbilicus Um`bi*li"cus, n. [L. See {Umbilic}.] 1. (Anat.) The depression, or mark, in the median line of the abdomen, which indicates the point where the umbilical cord separated from the fetus; the navel. [1913 Webster]

2. (Gr. & Rom. Antiq.) An ornamented or painted ball or boss fastened at each end of the stick on which manuscripts were rolled. --Dr. W. Smith. [1913 Webster]

3. (Bot.) The hilum. [1913 Webster]

4. (Zo["o]l.) (a) A depression or opening in the center of the base of many spiral shells. (b) Either one of the two apertures in the calamus of a feather. [1913 Webster]

5. (Geom.) (a) One of foci of an ellipse, or other curve. [Obs.] (b) A point of a surface at which the curvatures of the normal sections are all equal to each other. A sphere may be osculatory to the surface in every direction at an umbilicus. Called also {umbilic}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Umbilicus — may refer to: *umbilicus, a feature of gastropod, Nautilus and Ammonite shell anatomy *umbilicus, a synonym for the navel or belly button. * Umbilicus , a genus of over ninety species of perennial flowering plants, including: ** Umbilicus… …   Wikipedia

  • Umbilicus — est un genre de 15 à 20 espèces de plante à fleur de la famille des Crassulaceae. Espèces principales Umbilicus chloranthus, Sud des Balkans Umbilicus chrysanthus, les Alpes Umbilicus erectus, Sud des Balkans, Sud de l Italie Umbilicus… …   Wikipédia en Français

  • UMBILICUS — quoe iliorum umbo, Isidor. ad libros a Romanis translatus est. Libris enim materiam coretx olim, papyrus, carbasus, ovilla tergora, lintei, plumbum, et alia suppeditârunt, ut cuilibet animadvertere promptum est. Vide supra. Iidem quod circum… …   Hofmann J. Lexicon universale

  • Umbilicus — (lat. Nabel ) bezeichnet den Bauchnabel Umbilicus (Gattung), eine Pflanzengattung Umbilicus urbis, einen antiken Tempel in Rom Diese Seite ist eine Begriffsklärung zur Unterscheidung mehrer …   Deutsch Wikipedia

  • umbilicus — (n.) navel, 1610s, from L. umbilicus navel, from PIE root * (o)nobh navel (see NAVEL (Cf. navel)). In English, mostly confined to medical writing. Latin umbilicus is source of Sp. ombligo as well as O.Fr. lombril, lit. the navel, from l ombril,… …   Etymology dictionary

  • Umbilīcus — (lat.), Nabel, s. d.; U. marinus (Meernabel), s. Kreiselschnecken …   Meyers Großes Konversations-Lexikon

  • Umbilicus — Umbilīcus (lat.), Nabel; Mittelpunkt; umbilikāl, zum Nabel gehörig; Umbilikalregion, Nabelgegend …   Kleines Konversations-Lexikon

  • Umbilicus — Umbilicus, lat., Nabel; Mittelpunkt, Mitte; Umbilicit, Nabelschnecke …   Herders Conversations-Lexikon

  • umbilicus — ► NOUN (pl. umbilici or umbilicuses) 1) Anatomy the navel. 2) Zoology a central depression or hole in the whorl of some gastropod molluscs and many ammonites. ORIGIN Latin …   English terms dictionary

  • umbilicus — [um bil′i kəs, um΄bi lī′kəs] n. pl. umbilici [um bil′isī΄, um΄bi lī′sī΄] [L, NAVEL] 1. NAVEL 2. a navel like depression, as the hilum of a seed …   English World dictionary

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