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The Collaborative International Dictionary
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.

  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.

  3. (Bot.) The hilum.

  4. (Zo["o]l.)

    1. A depression or opening in the center of the base of many spiral shells.

    2. Either one of the two apertures in the calamus of a feather.

  5. (Geom.)

    1. One of foci of an ellipse, or other curve. [Obs.]

    2. 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.

Douglas Harper's Etymology Dictionary
umbilicus

"navel," 1610s, from Latin umbilicus "the navel," also "the center" of anything, from PIE *ombh-alo-, suffixed variant form of root *(o)nobh- "navel" (see navel). In English, mostly confined to medical writing. Latin umbilicus is source of Spanish ombligo as well as Old French lombril, literally "the navel," from l'ombril, which by dissimilation became Modern French nombril (12c.).

Wiktionary
umbilicus

n. 1 (context anatomy English) navel 2 (context botany English) hilum 3 (context zoology English) A depression or opening in the center of the base of many spiral shells. 4 (context zoology English) Either of the two apertures in the calamus of a feather. 5 (context space English) A tube connecting an astronaut or spacecraft to the mothership, through which supplies and samples can be transferred. 6 (context geometry obsolete English) One of the focus of an ellipse or other curve. 7 (context geometry English) A point of a surface at which the curvatures of the normal sections are all equal to each other. 8 (context historical English) An ornamented or painted ball or boss fastened at each end of the stick on which manuscripts were rolled.

WordNet
umbilicus
  1. n. scar where the umbilical cord was attached [syn: navel, bellybutton, omphalos, omphalus]

  2. [also: umbilici (pl)]

Wikipedia
Umbilicus

Umbilicus may refer to:

  • Umbilicus (mollusc), a feature of gastropod, Nautilus and Ammonite shell anatomy
  • Umbilicus, a synonym for the navel or belly button
  • Umbilicus (genus), a genus of over ninety species of perennial flowering plants
  • Umbilicus urbis Romae, the designated center of the city of Rome from which and to which all distances in Rome and the Roman Empire were measured
  • Umbilicus mundi, or "the world's navel", a Greek artifact
Umbilicus (mollusc)

The umbilicus of a shell is the axially aligned, hollow cone-shaped space within the whorls of a coiled mollusc shell. The term umbilicus is often used in descriptions of gastropod shells, i.e. it is a feature present on the ventral (or under) side of many (but not all) snail shells, including some species of sea snails, land snails, and freshwater snails.

The word is also applied to the depressed central area on the planispiral coiled shells of Nautilus species and fossil ammonites. (These are not gastropods, but shelled cephalopods.)

Umbilicus (genus)

Umbilicus is a genus of over ninety species of flowering plants in the family Crassulaceae. Many of its species have been given synonyms under different genera such as Rosularia, Cotyledon, and Chiastophyllum. However, those that remain in Umbilicus are listed below:

  • Umbilicus rupestris (called navelwort)
  • Umbilicus horizontalis (called horizontal navelwort)
  • Umbilicus intermedius (called intermediate navelwort)
  • Umbilicus chrysanthus (called Venus' navel)
  • Umbilicus chloranthus (called green Venus' navel)
  • Umbilicus erectus (called reniform Venus' navel)
  • Umbilicus oppositifolius (called gold drop) (also as Chiastophyllum o.)
Other (unnamed) species
  • Umbilicus aetneus (Tornab)
  • Umbilicus affinis (Schrenk)
  • Umbilicus aizoon (Fenzl)
  • Umbilicus albido-opacus (Carlström), sometimes referred to as opacus.
  • Umbilicus alpestris (Karelin and Kirilov)
  • Umbilicus botryoides (Hochstetter)
  • Umbilicus citrinus (Wolley-Dod)
  • Umbilicus coutinhoi (Mariz)
  • Umbilicus cyprius (Holmboe)
  • Umbilicus deflexus (Pomel, 1875)
  • Umbilicus denticulatus ( Turcz.)
  • Umbilicus elymaiticus ( Boiss. and Hauszknecht)
  • Umbilicus erubescens ( Maxim.)
  • Umbilicus ferganicus (Popov)
  • Umbilicus fimbriatus (Turcz.)
  • Umbilicus gendjnamensis ( Stapf)
  • Umbilicus giganteus (Battandier)
  • Umbilicus glaber (Regel and Winkler)
  • Umbilicus globulariaefolius (Fenzl)
  • Umbilicus haussknechtii / Umbilicus hauszknechtii (Boiss. and Reuter)
  • Umbilicus heylandianus ( Webb and Berthel.), found in Spain and Portugal
  • Umbilicus hispidus ( Lam.)
  • Umbilicus lampusae (Kotschy)
  • Umbilicus lassithiensis (Gandoger)
  • Umbilicus leucanthus ( G.Don)
  • Umbilicus libanoticus ( Labill.) — possibly Umbilicus glaber
  • Umbilicus lievenii ( Ledeb.)
  • Umbilicus linearifolius ( Franch.)
  • Umbilicus lineatus (Boiss.)
  • Umbilicus lineolatus (Boiss.)
  • Umbilicus linifolius ( Rupr.)
  • Umbilicus luteus ( Huds.)
  • Umbilicus malacophyllus ( Pall.)
  • Umbilicus maroccanus (Gandoger)
  • Umbilicus mexicanus ( Schltdl., 1839)
  • Umbilicus micranthus (Pomel)
  • Umbilicus microstachyum (Kotschy)
  • Umbilicus mirus (Pampan.)
  • Umbilicus multicaulis (Boiss. and Buhse)
  • Umbilicus multicaulis (Boiss. and Buhse)
  • Umbilicus oreades ( Decne.)
  • Umbilicus oxypetalus (Boiss.)
  • Umbilicus pallidiflorus (Holmboe)
  • Umbilicus pallidus ( Schott and Kotschy)
  • Umbilicus paniculatus (Regel and Schmalh.)
  • Umbilicus parviflorus ( Desf.), found in Greece.
  • Umbilicus patens (Pomel)
  • Umbilicus patulus (Candargy)
  • Umbilicus pendulinus (Wolley-Dod)
  • Umbilicus persicus (Boiss.)
  • Umbilicus pestalozzae (Boiss.)
  • Umbilicus platyphyllus (Schrenk)
  • Umbilicus praealtus (Brotero)
  • Umbilicus pubescens (G.Don)
  • Umbilicus pulvinatus (Rupr.)
  • Umbilicus pulvinatus (Rupr.)
  • Umbilicus radicans ( Klotzsch)
  • Umbilicus radiciflorus ( Steud. and Boiss., 1872)
  • Umbilicus ramosissimus (Maxim.)
  • Umbilicus rodriguezii (Gandoger)
  • Umbilicus samius (d'Urville)
  • Umbilicus schmidtii ( Bolle)
  • Umbilicus sedoides ( DC.)
  • Umbilicus semenovii (Regel and Herder)
  • Umbilicus semiensis ( A.Rich.)
  • Umbilicus sempervivum (Bieberstein)
  • Umbilicus serpentinicus (Werdermann)
  • Umbilicus serratus (DC.)
  • Umbilicus sessilis (Dulac)
  • Umbilicus seteveni (Ledeb. and A.Boriss.)
  • Umbilicus simplex (C.Koch)
  • Umbilicus spathulatus ( Hook.)
  • Umbilicus spinosus (DC.)
  • Umbilicus sprunerianus (Boiss.)
  • Umbilicus stamineus (Ledeb.)
  • Umbilicus strangulatus ( A.Berger)
  • Umbilicus subspicatus (Freyn)
  • Umbilicus subulatus ( G.Don)
  • Umbilicus thyrsiflorus (DC.)
  • Umbilicus tropaeolifolius (Boiss., 1843)
  • Umbilicus tuberculosus (DC. and Streud.)
  • Umbilicus turkestanicus (Regel and Winkler)
  • Umbilicus umbilicatus (Lam.)
  • Umbilicus vulgaris (Batt. and Trabut)
  • Umbilicus winkleri (Willkomm)

Usage examples of "umbilicus".

Palpation revealed a cystic immobile tumor, extending 2 inches above the umbilicus and apparently fixed by deep adhesions.

The woman, aged twenty-two, was pale, diminutive in size, and showed an enormous abdomen, which measured 50 inches in circumference at the umbilicus and 27 inches from the ensiform cartilage to the pubes.

They were healthy girls, four years of age, and apparently perfect in every respect, except that, from the ensiform cartilage to the umbilicus, they were united by a band 4 inches long and 2 inches wide.

An incision was made from the ensiform cartilage to the umbilicus, the aneurysm exposed, and its cavity filled up with two meters of silver-plated wire.

The abdomen in its largest circumference measured 68 inches, and 27 inches from the ensiform cartilage to the umbilicus.

Australia will colonize the islands to its north and connect by some isthmian umbilicus to Asia.

The girl was healthy and well developed, and from the middle line of her body between the xiphoid cartilage and the umbilicus, attached by a soft pedicle, was an accessory individual, irregular, of ovoid shape, the smaller end, representing the head, being upward.

There is a case described of a man who evidently suffered from a patent urachus, as the urine passed in jets as if controlled by a sphincter from his umbilicus.

It was linked to Brownsville by the twenty-five mile umbilicus of Route 77, The George Brell residence was at 18 Linden Way, Wentwood.

Psych, was largely responsible for the manship umbilicus, and he told every new class of tyros the same thing.

Umbilicum dictum aiunt ab umbilico nostro, quod is medius locus sit terrarum, ut umbilicus in nobis: quod utrumque est falsum.

The case of Meibomius was that of an infant, and the case mentioned by Rhodius was associated with hemorrhages from the lungs, umbilicus, thigh, and tooth-cavity.

Jaeger in 1770 at Tubingen describes the metastasis of milk to the umbilicus, Haen to the back, and Schurig to a wound in the foot.

The microcephalic shoved a broad thumb against the supine figure in the area between the umbilicus and the breasthone.

Unable to detach themselves as he did, unable to novocaine their emotional umbilicus, they sought halfway answers in subjective inadequacy.