umbilicus

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English[edit]

Etymology[edit]

From Latin umbilīcus (navel).

Pronunciation[edit]

  • IPA(key): /ˌʌmˈbɪlɪkəs/

Noun[edit]

umbilicus (plural umbilici or umbilicuses)

  1. (anatomy) navel
  2. (botany) hilum
  3. (zoology) A depression or opening in the center of the base of many spiral shells.
  4. (zoology) Either of the two apertures in the calamus of a feather.
  5. (geometry, obsolete) One of the foci of an ellipse or other curve.
  6. (geometry) 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.
  7. (historical) An ornamented or painted ball or boss fastened at each end of the stick on which manuscripts were rolled.
    (Can we find and add a quotation of Dr. W. Smith to this entry?)

Synonyms[edit]

Derived terms[edit]

Translations[edit]


Latin[edit]

Etymology[edit]

From Proto-Indo-European *h₃nobʰilos (navel).

Pronunciation[edit]

Noun[edit]

umbilīcus m (genitive umbilīcī); second declension

  1. A navel.
  2. The middle or center.
  3. The ornamented end of a scroll.

Inflection[edit]

Second declension.

Number Singular Plural
nominative umbilīcus umbilīcī
genitive umbilīcī umbilīcōrum
dative umbilīcō umbilīcīs
accusative umbilīcum umbilīcōs
ablative umbilīcō umbilīcīs
vocative umbilīce umbilīcī

Descendants[edit]

References[edit]

  • umbilicus in Charlton T. Lewis & Charles Short, A Latin Dictionary, Oxford: Clarendon Press, 1879