umbilicus
IPA: ʌmbˈɪɫɪkʌs
noun
- (anatomy) navel
- (botany) hilum
- (zoology) A depression or opening in the center of the base of many spiral shells.
- (zoology) Either of the two apertures in the calamus of a feather.
- (space science) A tube connecting an astronaut or spacecraft to the mothership, through which supplies and samples can be transferred.
- (geometry, obsolete) One of the foci of an ellipse or other curve.
- (geometry) A point of a surface at which the curvatures of the normal sections are all equal to each other.
- (historical) An ornamented or painted ball or boss fastened at each end of the stick on which manuscripts were rolled.
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Examples of "umbilicus" in Sentences
- The umbilicus is open or closed.
- The umbilicus is small and deep.
- They may possess or lack an umbilicus.
- The umbilicus is either wide or covered.
- These shells often contain an umbilicus.
- In all the umbilicus is open and perforate.
- The umbilicus is generally moderate to closed.
- The umbilicus is partly covered with a callus.
- That was the location where the hernia was, the umbilicus.
- The shell may have an open umbilicus or a plugged umbilicus.